启动时提示：
以下资源已使用弱签名算法 MD5withRSA 进行签名，并且被视为未签名
使用文本编辑器打开 java 安装目录中：jre1.8.0_251\lib\security\java.security
在其内搜索 .disabledAlgorithms= 将其后参数删除保存即可。
附修改后 java.security
#
# This is the "master security properties file".
#
# An alternate java.security properties file may be specified
# from the command line via the system property
#
# -Djava.security.properties=<URL>
#
# This properties file appends to the master security properties file.
# If both properties files specify values for the same key, the value
# from the command-line properties file is selected, as it is the last
# one loaded.
#
# Also, if you specify
#
# -Djava.security.properties==<URL> (2 equals),
#
# then that properties file completely overrides the master security
# properties file.
#
# To disable the ability to specify an additional properties file from
# the command line, set the key security.overridePropertiesFile
# to false in the master security properties file. It is set to true
# by default.
# In this file, various security properties are set for use by
# java.security classes. This is where users can statically register
# Cryptography Package Providers ("providers" for short). The term
# "provider" refers to a package or set of packages that supply a
# concrete implementation of a subset of the cryptography aspects of
# the Java Security API. A provider may, for example, implement one or
# more digital signature algorithms or message digest algorithms.
#
# Each provider must implement a subclass of the Provider class.
# To register a provider in this master security properties file,
# specify the Provider subclass name and priority in the format
#
# security.provider.<n>=<className>
#
# This declares a provider, and specifies its preference
# order n. The preference order is the order in which providers are
# searched for requested algorithms (when no specific provider is
# requested). The order is 1-based; 1 is the most preferred, followed
# by 2, and so on.
#
# <className> must specify the subclass of the Provider class whose
# constructor sets the values of various properties that are required
# for the Java Security API to look up the algorithms or other
# facilities implemented by the provider.
#
# There must be at least one provider specification in java.security.
# There is a default provider that comes standard with the JDK. It
# is called the "SUN" provider, and its Provider subclass
# named Sun appears in the sun.security.provider package. Thus, the
# "SUN" provider is registered via the following:
#
# security.provider.1=sun.security.provider.Sun
#
# (The number 1 is used for the default provider.)
#
# Note: Providers can be dynamically registered instead by calls to
# either the addProvider or insertProviderAt method in the Security
# class.
#
# List of providers and their preference orders (see above):
#
security.provider.1=sun.security.provider.Sun
security.provider.2=sun.security.rsa.SunRsaSign
security.provider.3=sun.security.ec.SunEC
security.provider.4=com.sun.net.ssl.internal.ssl.Provider
security.provider.5=com.sun.crypto.provider.SunJCE
security.provider.6=sun.security.jgss.SunProvider
security.provider.7=com.sun.security.sasl.Provider
security.provider.8=org.jcp.xml.dsig.internal.dom.XMLDSigRI
security.provider.9=sun.security.smartcardio.SunPCSC
security.provider.10=sun.security.mscapi.SunMSCAPI
#
# Sun Provider SecureRandom seed source.
#
# Select the primary source of seed data for the "SHA1PRNG" and
# "NativePRNG" SecureRandom implementations in the "Sun" provider.
# (Other SecureRandom implementations might also use this property.)
#
# On Unix-like systems (for example, Solaris/Linux/MacOS), the
# "NativePRNG" and "SHA1PRNG" implementations obtains seed data from
# special device files such as file:/dev/random.
#
# On Windows systems, specifying the URLs "file:/dev/random" or
# "file:/dev/urandom" will enable the native Microsoft CryptoAPI seeding
# mechanism for SHA1PRNG.
#
# By default, an attempt is made to use the entropy gathering device
# specified by the "securerandom.source" Security property. If an
# exception occurs while accessing the specified URL:
#
# SHA1PRNG:
# the traditional system/thread activity algorithm will be used.
#
# NativePRNG:
# a default value of /dev/random will be used. If neither
# are available, the implementation will be disabled.
# "file" is the only currently supported protocol type.
#
# The entropy gathering device can also be specified with the System
# property "java.security.egd". For example:
#
# % java -Djava.security.egd=file:/dev/random MainClass
#
# Specifying this System property will override the
# "securerandom.source" Security property.
#
# In addition, if "file:/dev/random" or "file:/dev/urandom" is
# specified, the "NativePRNG" implementation will be more preferred than
# SHA1PRNG in the Sun provider.
#
securerandom.source=file:/dev/random
#
# A list of known strong SecureRandom implementations.
#
# To help guide applications in selecting a suitable strong
# java.security.SecureRandom implementation, Java distributions should
# indicate a list of known strong implementations using the property.
#
# This is a comma-separated list of algorithm and/or algorithm:provider
# entries.
#
securerandom.strongAlgorithms=Windows-PRNG:SunMSCAPI,SHA1PRNG:SUN
#
# Class to instantiate as the javax.security.auth.login.Configuration
# provider.
#
login.configuration.provider=sun.security.provider.ConfigFile
#
# Default login configuration file
#
#login.config.url.1=file:${user.home}/.java.login.config
#
# Class to instantiate as the system Policy. This is the name of the class
# that will be used as the Policy object.
#
policy.provider=sun.security.provider.PolicyFile
# The default is to have a single system-wide policy file,
# and a policy file in the user's home directory.
policy.url.1=file:${java.home}/lib/security/java.policy
policy.url.2=file:${user.home}/.java.policy
# whether or not we expand properties in the policy file
# if this is set to false, properties (${...}) will not be expanded in policy
# files.
policy.expandProperties=true
# whether or not we allow an extra policy to be passed on the command line
# with -Djava.security.policy=somefile. Comment out this line to disable
# this feature.
policy.allowSystemProperty=true
# whether or not we look into the IdentityScope for trusted Identities
# when encountering a 1.1 signed JAR file. If the identity is found
# and is trusted, we grant it AllPermission.
policy.ignoreIdentityScope=false
#
# Default keystore type.
#
keystore.type=jks
#
# Controls compatibility mode for the JKS keystore type.
#
# When set to 'true', the JKS keystore type supports loading
# keystore files in either JKS or PKCS12 format. When set to 'false'
# it supports loading only JKS keystore files.
#
keystore.type.compat=true
#
# List of comma-separated packages that start with or equal this string
# will cause a security exception to be thrown when
# passed to checkPackageAccess unless the
# corresponding RuntimePermission ("accessClassInPackage."+package) has
# been granted.
package.access=sun.,\
com.sun.xml.internal.,\
com.sun.imageio.,\
com.sun.istack.internal.,\
com.sun.jmx.,\
com.sun.media.sound.,\
com.sun.naming.internal.,\
com.sun.proxy.,\
com.sun.corba.se.,\
com.sun.org.apache.bcel.internal.,\
com.sun.org.apache.regexp.internal.,\
com.sun.org.apache.xerces.internal.,\
com.sun.org.apache.xpath.internal.,\
com.sun.org.apache.xalan.internal.extensions.,\
com.sun.org.apache.xalan.internal.lib.,\
com.sun.org.apache.xalan.internal.res.,\
com.sun.org.apache.xalan.internal.templates.,\
com.sun.org.apache.xalan.internal.utils.,\
com.sun.org.apache.xalan.internal.xslt.,\
com.sun.org.apache.xalan.internal.xsltc.cmdline.,\
com.sun.org.apache.xalan.internal.xsltc.compiler.,\
com.sun.org.apache.xalan.internal.xsltc.trax.,\
com.sun.org.apache.xalan.internal.xsltc.util.,\
com.sun.org.apache.xml.internal.res.,\
com.sun.org.apache.xml.internal.resolver.helpers.,\
com.sun.org.apache.xml.internal.resolver.readers.,\
com.sun.org.apache.xml.internal.security.,\
com.sun.org.apache.xml.internal.serializer.utils.,\
com.sun.org.apache.xml.internal.utils.,\
com.sun.org.glassfish.,\
com.oracle.xmlns.internal.,\
com.oracle.webservices.internal.,\
oracle.jrockit.jfr.,\
org.jcp.xml.dsig.internal.,\
jdk.internal.,\
jdk.nashorn.internal.,\
jdk.nashorn.tools.,\
jdk.xml.internal.,\
com.sun.activation.registries.,\
com.sun.java.accessibility.,\
com.sun.browser.,\
com.sun.glass.,\
com.sun.javafx.,\
com.sun.media.,\
com.sun.openpisces.,\
com.sun.prism.,\
com.sun.scenario.,\
com.sun.t2k.,\
com.sun.pisces.,\
com.sun.webkit.,\
jdk.management.resource.internal.
#
# List of comma-separated packages that start with or equal this string
# will cause a security exception to be thrown when
# passed to checkPackageDefinition unless the
# corresponding RuntimePermission ("defineClassInPackage."+package) has
# been granted.
#
# by default, none of the class loaders supplied with the JDK call
# checkPackageDefinition.
#
package.definition=sun.,\
com.sun.xml.internal.,\
com.sun.imageio.,\
com.sun.istack.internal.,\
com.sun.jmx.,\
com.sun.media.sound.,\
com.sun.naming.internal.,\
com.sun.proxy.,\
com.sun.corba.se.,\
com.sun.org.apache.bcel.internal.,\
com.sun.org.apache.regexp.internal.,\
com.sun.org.apache.xerces.internal.,\
com.sun.org.apache.xpath.internal.,\
com.sun.org.apache.xalan.internal.extensions.,\
com.sun.org.apache.xalan.internal.lib.,\
com.sun.org.apache.xalan.internal.res.,\
com.sun.org.apache.xalan.internal.templates.,\
com.sun.org.apache.xalan.internal.utils.,\
com.sun.org.apache.xalan.internal.xslt.,\
com.sun.org.apache.xalan.internal.xsltc.cmdline.,\
com.sun.org.apache.xalan.internal.xsltc.compiler.,\
com.sun.org.apache.xalan.internal.xsltc.trax.,\
com.sun.org.apache.xalan.internal.xsltc.util.,\
com.sun.org.apache.xml.internal.res.,\
com.sun.org.apache.xml.internal.resolver.helpers.,\
com.sun.org.apache.xml.internal.resolver.readers.,\
com.sun.org.apache.xml.internal.security.,\
com.sun.org.apache.xml.internal.serializer.utils.,\
com.sun.org.apache.xml.internal.utils.,\
com.sun.org.glassfish.,\
com.oracle.xmlns.internal.,\
com.oracle.webservices.internal.,\
oracle.jrockit.jfr.,\
org.jcp.xml.dsig.internal.,\
jdk.internal.,\
jdk.nashorn.internal.,\
jdk.nashorn.tools.,\
jdk.xml.internal.,\
com.sun.activation.registries.,\
com.sun.java.accessibility.,\
com.sun.browser.,\
com.sun.glass.,\
com.sun.javafx.,\
com.sun.media.,\
com.sun.openpisces.,\
com.sun.prism.,\
com.sun.scenario.,\
com.sun.t2k.,\
com.sun.pisces.,\
com.sun.webkit.,\
jdk.management.resource.internal.
#
# Determines whether this properties file can be appended to
# or overridden on the command line via -Djava.security.properties
#
security.overridePropertiesFile=true
#
# Determines the default key and trust manager factory algorithms for
# the javax.net.ssl package.
#
ssl.KeyManagerFactory.algorithm=SunX509
ssl.TrustManagerFactory.algorithm=PKIX
#
# The Java-level namelookup cache policy for successful lookups:
#
# any negative value: caching forever
# any positive value: the number of seconds to cache an address for
# zero: do not cache
#
# default value is forever (FOREVER). For security reasons, this
# caching is made forever when a security manager is set. When a security
# manager is not set, the default behavior in this implementation
# is to cache for 30 seconds.
#
# NOTE: setting this to anything other than the default value can have
# serious security implications. Do not set it unless
# you are sure you are not exposed to DNS spoofing attack.
#
#networkaddress.cache.ttl=-1
# The Java-level namelookup cache policy for failed lookups:
#
# any negative value: cache forever
# any positive value: the number of seconds to cache negative lookup results
# zero: do not cache
#
# In some Microsoft Windows networking environments that employ
# the WINS name service in addition to DNS, name service lookups
# that fail may take a noticeably long time to return (approx. 5 seconds).
# For this reason the default caching policy is to maintain these
# results for 10 seconds.
#
#
networkaddress.cache.negative.ttl=10
#
# Properties to configure OCSP for certificate revocation checking
#
# Enable OCSP
#
# By default, OCSP is not used for certificate revocation checking.
# This property enables the use of OCSP when set to the value "true".
#
# NOTE: SocketPermission is required to connect to an OCSP responder.
#
# Example,
# ocsp.enable=true
#
# Location of the OCSP responder
#
# By default, the location of the OCSP responder is determined implicitly
# from the certificate being validated. This property explicitly specifies
# the location of the OCSP responder. The property is used when the
# Authority Information Access extension (defined in RFC 3280) is absent
# from the certificate or when it requires overriding.
#
# Example,
# ocsp.responderURL=http://ocsp.example.net:80
#
# Subject name of the OCSP responder's certificate
#
# By default, the certificate of the OCSP responder is that of the issuer
# of the certificate being validated. This property identifies the certificate
# of the OCSP responder when the default does not apply. Its value is a string
# distinguished name (defined in RFC 2253) which identifies a certificate in
# the set of certificates supplied during cert path validation. In cases where
# the subject name alone is not sufficient to uniquely identify the certificate
# then both the "ocsp.responderCertIssuerName" and
# "ocsp.responderCertSerialNumber" properties must be used instead. When this
# property is set then those two properties are ignored.
#
# Example,
# ocsp.responderCertSubjectName="CN=OCSP Responder, O=XYZ Corp"
#
# Issuer name of the OCSP responder's certificate
#
# By default, the certificate of the OCSP responder is that of the issuer
# of the certificate being validated. This property identifies the certificate
# of the OCSP responder when the default does not apply. Its value is a string
# distinguished name (defined in RFC 2253) which identifies a certificate in
# the set of certificates supplied during cert path validation. When this
# property is set then the "ocsp.responderCertSerialNumber" property must also
# be set. When the "ocsp.responderCertSubjectName" property is set then this
# property is ignored.
#
# Example,
# ocsp.responderCertIssuerName="CN=Enterprise CA, O=XYZ Corp"
#
# Serial number of the OCSP responder's certificate
#
# By default, the certificate of the OCSP responder is that of the issuer
# of the certificate being validated. This property identifies the certificate
# of the OCSP responder when the default does not apply. Its value is a string
# of hexadecimal digits (colon or space separators may be present) which
# identifies a certificate in the set of certificates supplied during cert path
# validation. When this property is set then the "ocsp.responderCertIssuerName"
# property must also be set. When the "ocsp.responderCertSubjectName" property
# is set then this property is ignored.
#
# Example,
# ocsp.responderCertSerialNumber=2A:FF:00
#
# Policy for failed Kerberos KDC lookups:
#
# When a KDC is unavailable (network error, service failure, etc), it is
# put inside a blacklist and accessed less often for future requests. The
# value (case-insensitive) for this policy can be:
#
# tryLast
# KDCs in the blacklist are always tried after those not on the list.
#
# tryLess[:max_retries,timeout]
# KDCs in the blacklist are still tried by their order in the configuration,
# but with smaller max_retries and timeout values. max_retries and timeout
# are optional numerical parameters (default 1 and 5000, which means once
# and 5 seconds). Please notes that if any of the values defined here is
# more than what is defined in krb5.conf, it will be ignored.
#
# Whenever a KDC is detected as available, it is removed from the blacklist.
# The blacklist is reset when krb5.conf is reloaded. You can add
# refreshKrb5Config=true to a JAAS configuration file so that krb5.conf is
# reloaded whenever a JAAS authentication is attempted.
#
# Example,
# krb5.kdc.bad.policy = tryLast
# krb5.kdc.bad.policy = tryLess:2,2000
krb5.kdc.bad.policy = tryLast
# Algorithm restrictions for certification path (CertPath) processing
#
# In some environments, certain algorithms or key lengths may be undesirable
# for certification path building and validation. For example, "MD2" is
# generally no longer considered to be a secure hash algorithm. This section
# describes the mechanism for disabling algorithms based on algorithm name
# and/or key length. This includes algorithms used in certificates, as well
# as revocation information such as CRLs and signed OCSP Responses.
# The syntax of the disabled algorithm string is described as follows:
# DisabledAlgorithms:
# " DisabledAlgorithm { , DisabledAlgorithm } "
#
# DisabledAlgorithm:
# AlgorithmName [Constraint] { '&' Constraint }
#
# AlgorithmName:
# (see below)
#
# Constraint:
# KeySizeConstraint | CAConstraint | DenyAfterConstraint |
# UsageConstraint
#
# KeySizeConstraint:
# keySize Operator KeyLength
#
# Operator:
# <= | < | == | != | >= | >
#
# KeyLength:
# Integer value of the algorithm's key length in bits
#
# CAConstraint:
# jdkCA
#
# DenyAfterConstraint:
# denyAfter YYYY-MM-DD
#
# UsageConstraint:
# usage [TLSServer] [TLSClient] [SignedJAR]
#
# The "AlgorithmName" is the standard algorithm name of the disabled
# algorithm. See "Java Cryptography Architecture Standard Algorithm Name
# Documentation" for information about Standard Algorithm Names. Matching
# is performed using a case-insensitive sub-element matching rule. (For
# example, in "SHA1withECDSA" the sub-elements are "SHA1" for hashing and
# "ECDSA" for signatures.) If the assertion "AlgorithmName" is a
# sub-element of the certificate algorithm name, the algorithm will be
# rejected during certification path building and validation. For example,
# the assertion algorithm name "DSA" will disable all certificate algorithms
# that rely on DSA, such as NONEwithDSA, SHA1withDSA. However, the assertion
# will not disable algorithms related to "ECDSA".
#
# A "Constraint" defines restrictions on the keys and/or certificates for
# a specified AlgorithmName:
#
# KeySizeConstraint:
# keySize Operator KeyLength
# The constraint requires a key of a valid size range if the
# "AlgorithmName" is of a key algorithm. The "KeyLength" indicates
# the key size specified in number of bits. For example,
# "RSA keySize <= 1024" indicates that any RSA key with key size less
# than or equal to 1024 bits should be disabled, and
# "RSA keySize < 1024, RSA keySize > 2048" indicates that any RSA key
# with key size less than 1024 or greater than 2048 should be disabled.
# This constraint is only used on algorithms that have a key size.
#
# CAConstraint:
# jdkCA
# This constraint prohibits the specified algorithm only if the
# algorithm is used in a certificate chain that terminates at a marked
# trust anchor in the lib/security/cacerts keystore. If the jdkCA
# constraint is not set, then all chains using the specified algorithm
# are restricted. jdkCA may only be used once in a DisabledAlgorithm
# expression.
# Example: To apply this constraint to SHA-1 certificates, include
# the following: "SHA1 jdkCA"
#
# DenyAfterConstraint:
# denyAfter YYYY-MM-DD
# This constraint prohibits a certificate with the specified algorithm
# from being used after the date regardless of the certificate's
# validity. JAR files that are signed and timestamped before the
# constraint date with certificates containing the disabled algorithm
# will not be restricted. The date is processed in the UTC timezone.
# This constraint can only be used once in a DisabledAlgorithm
# expression.
# Example: To deny usage of RSA 2048 bit certificates after Feb 3 2020,
# use the following: "RSA keySize == 2048 & denyAfter 2020-02-03"
#
# UsageConstraint:
# usage [TLSServer] [TLSClient] [SignedJAR]
# This constraint prohibits the specified algorithm for
# a specified usage. This should be used when disabling an algorithm
# for all usages is not practical. 'TLSServer' restricts the algorithm
# in TLS server certificate chains when server authentication is
# performed. 'TLSClient' restricts the algorithm in TLS client
# certificate chains when client authentication is performed.
# 'SignedJAR' constrains use of certificates in signed jar files.
# The usage type follows the keyword and more than one usage type can
# be specified with a whitespace delimiter.
# Example: "SHA1 usage TLSServer TLSClient"
#
# When an algorithm must satisfy more than one constraint, it must be
# delimited by an ampersand '&'. For example, to restrict certificates in a
# chain that terminate at a distribution provided trust anchor and contain
# RSA keys that are less than or equal to 1024 bits, add the following
# constraint: "RSA keySize <= 1024 & jdkCA".
#
# All DisabledAlgorithms expressions are processed in the order defined in the
# property. This requires lower keysize constraints to be specified
# before larger keysize constraints of the same algorithm. For example:
# "RSA keySize < 1024 & jdkCA, RSA keySize < 2048".
#
# Note: The algorithm restrictions do not apply to trust anchors or
# self-signed certificates.
#
# Note: This property is currently used by Oracle's PKIX implementation. It
# is not guaranteed to be examined and used by other implementations.
#
# Example:
# jdk.certpath.disabledAlgorithms=MD2, DSA, RSA keySize < 2048
#
#
jdk.certpath.disabledAlgorithms=
#
# Algorithm restrictions for signed JAR files
#
# In some environments, certain algorithms or key lengths may be undesirable
# for signed JAR validation. For example, "MD2" is generally no longer
# considered to be a secure hash algorithm. This section describes the
# mechanism for disabling algorithms based on algorithm name and/or key length.
# JARs signed with any of the disabled algorithms or key sizes will be treated
# as unsigned.
#
# The syntax of the disabled algorithm string is described as follows:
# DisabledAlgorithms:
# " DisabledAlgorithm { , DisabledAlgorithm } "
#
# DisabledAlgorithm:
# AlgorithmName [Constraint] { '&' Constraint }
#
# AlgorithmName:
# (see below)
#
# Constraint:
# KeySizeConstraint | DenyAfterConstraint
#
# KeySizeConstraint:
# keySize Operator KeyLength
#
# DenyAfterConstraint:
# denyAfter YYYY-MM-DD
#
# Operator:
# <= | < | == | != | >= | >
#
# KeyLength:
# Integer value of the algorithm's key length in bits
#
# Note: This property is currently used by the JDK Reference
# implementation. It is not guaranteed to be examined and used by other
# implementations.
#
# See "jdk.certpath.disabledAlgorithms" for syntax descriptions.
#
jdk.jar.disabledAlgorithms=
#
# Algorithm restrictions for Secure Socket Layer/Transport Layer Security
# (SSL/TLS) processing
#
# In some environments, certain algorithms or key lengths may be undesirable
# when using SSL/TLS. This section describes the mechanism for disabling
# algorithms during SSL/TLS security parameters negotiation, including
# protocol version negotiation, cipher suites selection, peer authentication
# and key exchange mechanisms.
#
# Disabled algorithms will not be negotiated for SSL/TLS connections, even
# if they are enabled explicitly in an application.
#
# For PKI-based peer authentication and key exchange mechanisms, this list
# of disabled algorithms will also be checked during certification path
# building and validation, including algorithms used in certificates, as
# well as revocation information such as CRLs and signed OCSP Responses.
# This is in addition to the jdk.certpath.disabledAlgorithms property above.
#
# See the specification of "jdk.certpath.disabledAlgorithms" for the
# syntax of the disabled algorithm string.
#
# Note: The algorithm restrictions do not apply to trust anchors or
# self-signed certificates.
#
# Note: This property is currently used by the JDK Reference implementation.
# It is not guaranteed to be examined and used by other implementations.
#
# Example:
# jdk.tls.disabledAlgorithms=MD5, SSLv3, DSA, RSA keySize < 2048
jdk.tls.disabledAlgorithms=
# Legacy algorithms for Secure Socket Layer/Transport Layer Security (SSL/TLS)
# processing in JSSE implementation.
#
# In some environments, a certain algorithm may be undesirable but it
# cannot be disabled because of its use in legacy applications. Legacy
# algorithms may still be supported, but applications should not use them
# as the security strength of legacy algorithms are usually not strong enough
# in practice.
#
# During SSL/TLS security parameters negotiation, legacy algorithms will
# not be negotiated unless there are no other candidates.
#
# The syntax of the legacy algorithms string is described as this Java
# BNF-style:
# LegacyAlgorithms:
# " LegacyAlgorithm { , LegacyAlgorithm } "
#
# LegacyAlgorithm:
# AlgorithmName (standard JSSE algorithm name)
#
# See the specification of security property "jdk.certpath.disabledAlgorithms"
# for the syntax and description of the "AlgorithmName" notation.
#
# Per SSL/TLS specifications, cipher suites have the form:
# SSL_KeyExchangeAlg_WITH_CipherAlg_MacAlg
# or
# TLS_KeyExchangeAlg_WITH_CipherAlg_MacAlg
#
# For example, the cipher suite TLS_RSA_WITH_AES_128_CBC_SHA uses RSA as the
# key exchange algorithm, AES_128_CBC (128 bits AES cipher algorithm in CBC
# mode) as the cipher (encryption) algorithm, and SHA-1 as the message digest
# algorithm for HMAC.
#
# The LegacyAlgorithm can be one of the following standard algorithm names:
# 1. JSSE cipher suite name, e.g., TLS_RSA_WITH_AES_128_CBC_SHA
# 2. JSSE key exchange algorithm name, e.g., RSA
# 3. JSSE cipher (encryption) algorithm name, e.g., AES_128_CBC
# 4. JSSE message digest algorithm name, e.g., SHA
#
# See SSL/TLS specifications and "Java Cryptography Architecture Standard
# Algorithm Name Documentation" for information about the algorithm names.
#
# Note: This property is currently used by the JDK Reference implementation.
# It is not guaranteed to be examined and used by other implementations.
# There is no guarantee the property will continue to exist or be of the
# same syntax in future releases.
#
# Example:
# jdk.tls.legacyAlgorithms=DH_anon, DES_CBC, SSL_RSA_WITH_RC4_128_MD5
#
jdk.tls.legacyAlgorithms= \
K_NULL, C_NULL, M_NULL, \
DH_anon, ECDH_anon, \
RC4_128, RC4_40, DES_CBC, DES40_CBC, \
3DES_EDE_CBC
# The pre-defined default finite field Diffie-Hellman ephemeral (DHE)
# parameters for Transport Layer Security (SSL/TLS/DTLS) processing.
#
# In traditional SSL/TLS/DTLS connections where finite field DHE parameters
# negotiation mechanism is not used, the server offers the client group
# parameters, base generator g and prime modulus p, for DHE key exchange.
# It is recommended to use dynamic group parameters. This property defines
# a mechanism that allows you to specify custom group parameters.
#
# The syntax of this property string is described as this Java BNF-style:
# DefaultDHEParameters:
# DefinedDHEParameters { , DefinedDHEParameters }
#
# DefinedDHEParameters:
# "{" DHEPrimeModulus , DHEBaseGenerator "}"
#
# DHEPrimeModulus:
# HexadecimalDigits
#
# DHEBaseGenerator:
# HexadecimalDigits
#
# HexadecimalDigits:
# HexadecimalDigit { HexadecimalDigit }
#
# HexadecimalDigit: one of
# 0 1 2 3 4 5 6 7 8 9 A B C D E F a b c d e f
#
# Whitespace characters are ignored.
#
# The "DefinedDHEParameters" defines the custom group parameters, prime
# modulus p and base generator g, for a particular size of prime modulus p.
# The "DHEPrimeModulus" defines the hexadecimal prime modulus p, and the
# "DHEBaseGenerator" defines the hexadecimal base generator g of a group
# parameter. It is recommended to use safe primes for the custom group
# parameters.
#
# If this property is not defined or the value is empty, the underlying JSSE
# provider's default group parameter is used for each connection.
#
# If the property value does not follow the grammar, or a particular group
# parameter is not valid, the connection will fall back and use the
# underlying JSSE provider's default group parameter.
#
# Note: This property is currently used by OpenJDK's JSSE implementation. It
# is not guaranteed to be examined and used by other implementations.
#
# Example:
# jdk.tls.server.defaultDHEParameters=
# { \
# FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1 \
# 29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD \
# EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245 \
# E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED \
# EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE65381 \
# FFFFFFFF FFFFFFFF, 2}
# Cryptographic Jurisdiction Policy defaults
#
# Import and export control rules on cryptographic software vary from
# country to country. By default, the JDK provides two different sets of
# cryptographic policy files:
#
# unlimited: These policy files contain no restrictions on cryptographic
# strengths or algorithms.
#
# limited: These policy files contain more restricted cryptographic
# strengths, and are still available if your country or
# usage requires the traditional restrictive policy.
#
# The JDK JCE framework uses the unlimited policy files by default.
# However the user may explicitly choose a set either by defining the
# "crypto.policy" Security property or by installing valid JCE policy
# jar files into the traditional JDK installation location. To better
# support older JDK Update releases, the "crypto.policy" property is not
# defined by default. See below for more information.
#
# The following logic determines which policy files are used:
#
# <java-home> refers to the directory where the JRE was
# installed and may be determined using the "java.home"
# System property.
#
# 1. If the Security property "crypto.policy" has been defined,
# then the following mechanism is used:
#
# The policy files are stored as jar files in subdirectories of
# <java-home>/lib/security/policy. Each directory contains a complete
# set of policy files.
#
# The "crypto.policy" Security property controls the directory
# selection, and thus the effective cryptographic policy.
#
# The default set of directories is:
#
# limited | unlimited
#
# 2. If the "crypto.policy" property is not set and the traditional
# US_export_policy.jar and local_policy.jar files
# (e.g. limited/unlimited) are found in the legacy
# <java-home>/lib/security directory, then the rules embedded within
# those jar files will be used. This helps preserve compatibility
# for users upgrading from an older installation.
#
# 3. If the jar files are not present in the legacy location
# and the "crypto.policy" Security property is not defined,
# then the JDK will use the unlimited settings (equivalent to
# crypto.policy=unlimited)
#
# Please see the JCA documentation for additional information on these
# files and formats.
#
# YOU ARE ADVISED TO CONSULT YOUR EXPORT/IMPORT CONTROL COUNSEL OR ATTORNEY
# TO DETERMINE THE EXACT REQUIREMENTS.
#
# Please note that the JCE for Java SE, including the JCE framework,
# cryptographic policy files, and standard JCE providers provided with
# the Java SE, have been reviewed and approved for export as mass market
# encryption item by the US Bureau of Industry and Security.
#
# Note: This property is currently used by the JDK Reference implementation.
# It is not guaranteed to be examined and used by other implementations.
#
#crypto.policy=unlimited
#
# The policy for the XML Signature secure validation mode. The mode is
# enabled by setting the property "org.jcp.xml.dsig.secureValidation" to
# true with the javax.xml.crypto.XMLCryptoContext.setProperty() method,
# or by running the code with a SecurityManager.
#
# Policy:
# Constraint {"," Constraint }
# Constraint:
# AlgConstraint | MaxTransformsConstraint | MaxReferencesConstraint |
# ReferenceUriSchemeConstraint | KeySizeConstraint | OtherConstraint
# AlgConstraint
# "disallowAlg" Uri
# MaxTransformsConstraint:
# "maxTransforms" Integer
# MaxReferencesConstraint:
# "maxReferences" Integer
# ReferenceUriSchemeConstraint:
# "disallowReferenceUriSchemes" String { String }
# KeySizeConstraint:
# "minKeySize" KeyAlg Integer
# OtherConstraint:
# "noDuplicateIds" | "noRetrievalMethodLoops"
#
# For AlgConstraint, Uri is the algorithm URI String that is not allowed.
# See the XML Signature Recommendation for more information on algorithm
# URI Identifiers. For KeySizeConstraint, KeyAlg is the standard algorithm
# name of the key type (ex: "RSA"). If the MaxTransformsConstraint,
# MaxReferencesConstraint or KeySizeConstraint (for the same key type) is
# specified more than once, only the last entry is enforced.
#
# Note: This property is currently used by the JDK Reference implementation. It
# is not guaranteed to be examined and used by other implementations.
#
jdk.xml.dsig.secureValidationPolicy=\
disallowAlg http://www.w3.org/TR/1999/REC-xslt-19991116,\
disallowAlg http://www.w3.org/2001/04/xmldsig-more#rsa-md5,\
disallowAlg http://www.w3.org/2001/04/xmldsig-more#hmac-md5,\
disallowAlg http://www.w3.org/2001/04/xmldsig-more#md5,\
maxTransforms 5,\
maxReferences 30,\
disallowReferenceUriSchemes file http https,\
minKeySize RSA 1024,\
minKeySize DSA 1024,\
minKeySize EC 224,\
noDuplicateIds,\
noRetrievalMethodLoops
#
# Serialization process-wide filter
#
# A filter, if configured, is used by java.io.ObjectInputStream during
# deserialization to check the contents of the stream.
# A filter is configured as a sequence of patterns, each pattern is either
# matched against the name of a class in the stream or defines a limit.
# Patterns are separated by ";" (semicolon).
# Whitespace is significant and is considered part of the pattern.
#
# If the system property jdk.serialFilter is also specified on the command
# line, it supersedes the security property value defined here.
#
# If a pattern includes a "=", it sets a limit.
# If a limit appears more than once the last value is used.
# Limits are checked before classes regardless of the order in the sequence of patterns.
# If any of the limits are exceeded, the filter status is REJECTED.
#
# maxdepth=value - the maximum depth of a graph
# maxrefs=value - the maximum number of internal references
# maxbytes=value - the maximum number of bytes in the input stream
# maxarray=value - the maximum array length allowed
#
# Other patterns, from left to right, match the class or package name as
# returned from Class.getName.
# If the class is an array type, the class or package to be matched is the element type.
# Arrays of any number of dimensions are treated the same as the element type.
# For example, a pattern of "!example.Foo", rejects creation of any instance or
# array of example.Foo.
#
# If the pattern starts with "!", the status is REJECTED if the remaining pattern
# is matched; otherwise the status is ALLOWED if the pattern matches.
# If the pattern ends with ".**" it matches any class in the package and all subpackages.
# If the pattern ends with ".*" it matches any class in the package.
# If the pattern ends with "*", it matches any class with the pattern as a prefix.
# If the pattern is equal to the class name, it matches.
# Otherwise, the status is UNDECIDED.
#
#jdk.serialFilter=pattern;pattern
#
# RMI Registry Serial Filter
#
# The filter pattern uses the same format as jdk.serialFilter.
# This filter can override the builtin filter if additional types need to be
# allowed or rejected from the RMI Registry or to decrease limits but not
# to increase limits.
# If the limits (maxdepth, maxrefs, or maxbytes) are exceeded, the object is rejected.
#
# Each non-array type is allowed or rejected if it matches one of the patterns,
# evaluated from left to right, and is otherwise allowed. Arrays of any
# component type, including subarrays and arrays of primitives, are allowed.
#
# Array construction of any component type, including subarrays and arrays of
# primitives, are allowed unless the length is greater than the maxarray limit.
# The filter is applied to each array element.
#
# The built-in filter allows subclasses of allowed classes and
# can approximately be represented as the pattern:
#
#sun.rmi.registry.registryFilter=\
# maxarray=1000000;\
# maxdepth=20;\
# java.lang.String;\
# java.lang.Number;\
# java.lang.reflect.Proxy;\
# java.rmi.Remote;\
# sun.rmi.server.UnicastRef;\
# sun.rmi.server.RMIClientSocketFactory;\
# sun.rmi.server.RMIServerSocketFactory;\
# java.rmi.activation.ActivationID;\
# java.rmi.server.UID
#
# RMI Distributed Garbage Collector (DGC) Serial Filter
#
# The filter pattern uses the same format as jdk.serialFilter.
# This filter can override the builtin filter if additional types need to be
# allowed or rejected from the RMI DGC.
#
# The builtin DGC filter can approximately be represented as the filter pattern:
#
#sun.rmi.transport.dgcFilter=\
# java.rmi.server.ObjID;\
# java.rmi.server.UID;\
# java.rmi.dgc.VMID;\
# java.rmi.dgc.Lease;\
# maxdepth=5;maxarray=10000
# CORBA ORBIorTypeCheckRegistryFilter
# Type check enhancement for ORB::string_to_object processing
#
# An IOR type check filter, if configured, is used by an ORB during
# an ORB::string_to_object invocation to check the veracity of the type encoded
# in the ior string.
#
# The filter pattern consists of a semi-colon separated list of class names.
# The configured list contains the binary class names of the IDL interface types
# corresponding to the IDL stub class to be instantiated.
# As such, a filter specifies a list of IDL stub classes that will be
# allowed by an ORB when an ORB::string_to_object is invoked.
# It is used to specify a white list configuration of acceptable
# IDL stub types which may be contained in a stringified IOR
# parameter passed as input to an ORB::string_to_object method.
#
# Note: This property is currently used by the JDK Reference implementation.
# It is not guaranteed to be examined and used by other implementations.
#
#com.sun.CORBA.ORBIorTypeCheckRegistryFilter=binary_class_name;binary_class_name
#
# JCEKS Encrypted Key Serial Filter
#
# This filter, if configured, is used by the JCEKS KeyStore during the
# deserialization of the encrypted Key object stored inside a key entry.
# If not configured or the filter result is UNDECIDED (i.e. none of the patterns
# matches), the filter configured by jdk.serialFilter will be consulted.
#
# If the system property jceks.key.serialFilter is also specified, it supersedes
# the security property value defined here.
#
# The filter pattern uses the same format as jdk.serialFilter. The default
# pattern allows java.lang.Enum, java.security.KeyRep, java.security.KeyRep$Type,
# and javax.crypto.spec.SecretKeySpec and rejects all the others.
jceks.key.serialFilter = java.lang.Enum;java.security.KeyRep;\
java.security.KeyRep$Type;javax.crypto.spec.SecretKeySpec;!*
#
# Disabled mechanisms for the Simple Authentication and Security Layer (SASL)
#
# Disabled mechanisms will not be negotiated by both SASL clients and servers.
# These mechanisms will be ignored if they are specified in the "mechanisms"
# argument of "Sasl.createSaslClient" or the "mechanism" argument of
# "Sasl.createSaslServer".
#
# The value of this property is a comma-separated list of SASL mechanisms.
# The mechanisms are case-sensitive. Whitespaces around the commas are ignored.
#
# Note: This property is currently used by the JDK Reference implementation.
# It is not guaranteed to be examined and used by other implementations.
#
# Example:
# jdk.sasl.disabledMechanisms=PLAIN, CRAM-MD5, DIGEST-MD5
jdk.sasl.disabledMechanisms=
#
# Policies for distrusting Certificate Authorities (CAs).
#
# This is a comma separated value of one or more case-sensitive strings, each
# of which represents a policy for determining if a CA should be distrusted.
# The supported values are:
#
# SYMANTEC_TLS : Distrust TLS Server certificates anchored by a Symantec
# root CA and issued after April 16, 2019 unless issued by one of the
# following subordinate CAs which have a later distrust date:
# 1. Apple IST CA 2 - G1, SHA-256 fingerprint:
# AC2B922ECFD5E01711772FEA8ED372DE9D1E2245FCE3F57A9CDBEC77296A424B
# Distrust after December 31, 2019.
# 2. Apple IST CA 8 - G1, SHA-256 fingerprint:
# A4FE7C7F15155F3F0AEF7AAA83CF6E06DEB97CA3F909DF920AC1490882D488ED
# Distrust after December 31, 2019.
#
# Leading and trailing whitespace surrounding each value are ignored.
# Unknown values are ignored. If the property is commented out or set to the
# empty String, no policies are enforced.
#
# Note: This property is currently used by the JDK Reference implementation.
# It is not guaranteed to be supported by other SE implementations. Also, this
# property does not override other security properties which can restrict
# certificates such as jdk.tls.disabledAlgorithms or
# jdk.certpath.disabledAlgorithms; those restrictions are still enforced even
# if this property is not enabled.
#
jdk.security.caDistrustPolicies=SYMANTEC_TLS
#
# Policies for the proxy_impersonator Kerberos ccache configuration entry
#
# The proxy_impersonator ccache configuration entry indicates that the ccache
# is a synthetic delegated credential for use with S4U2Proxy by an intermediate
# server. The ccache file should also contain the TGT of this server and
# an evidence ticket from the default principal of the ccache to this server.
#
# This security property determines how Java uses this configuration entry.
# There are 3 possible values:
#
# no-impersonate - Ignore this configuration entry, and always act as
# the owner of the TGT (if it exists).
#
# try-impersonate - Try impersonation when this configuration entry exists.
# If no matching TGT or evidence ticket is found,
# fallback to no-impersonate.
#
# always-impersonate - Always impersonate when this configuration entry exists.
# If no matching TGT or evidence ticket is found,
# no initial credential is read from the ccache.
#
# The default value is "always-impersonate".
#
# If a system property of the same name is also specified, it supersedes the
# security property value defined here.
#
#jdk.security.krb5.default.initiate.credential=always-impersonate
