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simonisae1be652013-11-26 16:40:31 +01001#
2# This is the "master security properties file".
3#
4# An alternate java.security properties file may be specified
5# from the command line via the system property
6#
7# -Djava.security.properties=<URL>
8#
9# This properties file appends to the master security properties file.
10# If both properties files specify values for the same key, the value
11# from the command-line properties file is selected, as it is the last
12# one loaded.
13#
14# Also, if you specify
15#
16# -Djava.security.properties==<URL> (2 equals),
17#
18# then that properties file completely overrides the master security
19# properties file.
20#
21# To disable the ability to specify an additional properties file from
22# the command line, set the key security.overridePropertiesFile
23# to false in the master security properties file. It is set to true
24# by default.
25
26# In this file, various security properties are set for use by
27# java.security classes. This is where users can statically register
28# Cryptography Package Providers ("providers" for short). The term
29# "provider" refers to a package or set of packages that supply a
30# concrete implementation of a subset of the cryptography aspects of
31# the Java Security API. A provider may, for example, implement one or
32# more digital signature algorithms or message digest algorithms.
33#
34# Each provider must implement a subclass of the Provider class.
35# To register a provider in this master security properties file,
36# specify the Provider subclass name and priority in the format
37#
38# security.provider.<n>=<className>
39#
40# This declares a provider, and specifies its preference
41# order n. The preference order is the order in which providers are
42# searched for requested algorithms (when no specific provider is
43# requested). The order is 1-based; 1 is the most preferred, followed
44# by 2, and so on.
45#
46# <className> must specify the subclass of the Provider class whose
47# constructor sets the values of various properties that are required
48# for the Java Security API to look up the algorithms or other
49# facilities implemented by the provider.
50#
51# There must be at least one provider specification in java.security.
52# There is a default provider that comes standard with the JDK. It
53# is called the "SUN" provider, and its Provider subclass
54# named Sun appears in the sun.security.provider package. Thus, the
55# "SUN" provider is registered via the following:
56#
57# security.provider.1=sun.security.provider.Sun
58#
59# (The number 1 is used for the default provider.)
60#
61# Note: Providers can be dynamically registered instead by calls to
62# either the addProvider or insertProviderAt method in the Security
63# class.
64
65#
66# List of providers and their preference orders (see above):
67#
68security.provider.1=sun.security.provider.Sun
69security.provider.2=sun.security.rsa.SunRsaSign
70security.provider.3=sun.security.ec.SunEC
71security.provider.4=com.sun.net.ssl.internal.ssl.Provider
72security.provider.5=com.sun.crypto.provider.SunJCE
73security.provider.6=sun.security.jgss.SunProvider
74security.provider.7=com.sun.security.sasl.Provider
75security.provider.8=org.jcp.xml.dsig.internal.dom.XMLDSigRI
76security.provider.9=sun.security.smartcardio.SunPCSC
77
78#
79# Sun Provider SecureRandom seed source.
80#
81# Select the primary source of seed data for the "SHA1PRNG" and
82# "NativePRNG" SecureRandom implementations in the "Sun" provider.
83# (Other SecureRandom implementations might also use this property.)
84#
85# On Unix-like systems (for example, Solaris/Linux/MacOS), the
86# "NativePRNG" and "SHA1PRNG" implementations obtains seed data from
87# special device files such as file:/dev/random.
88#
89# On Windows systems, specifying the URLs "file:/dev/random" or
90# "file:/dev/urandom" will enable the native Microsoft CryptoAPI seeding
91# mechanism for SHA1PRNG.
92#
93# By default, an attempt is made to use the entropy gathering device
94# specified by the "securerandom.source" Security property. If an
95# exception occurs while accessing the specified URL:
96#
97# SHA1PRNG:
98# the traditional system/thread activity algorithm will be used.
99#
100# NativePRNG:
101# a default value of /dev/random will be used. If neither
102# are available, the implementation will be disabled.
103# "file" is the only currently supported protocol type.
104#
105# The entropy gathering device can also be specified with the System
106# property "java.security.egd". For example:
107#
108# % java -Djava.security.egd=file:/dev/random MainClass
109#
110# Specifying this System property will override the
111# "securerandom.source" Security property.
112#
113# In addition, if "file:/dev/random" or "file:/dev/urandom" is
114# specified, the "NativePRNG" implementation will be more preferred than
115# SHA1PRNG in the Sun provider.
116#
117securerandom.source=file:/dev/random
118
119#
120# A list of known strong SecureRandom implementations.
121#
122# To help guide applications in selecting a suitable strong
123# java.security.SecureRandom implementation, Java distributions should
124# indicate a list of known strong implementations using the property.
125#
126# This is a comma-separated list of algorithm and/or algorithm:provider
127# entries.
128#
129securerandom.strongAlgorithms=NativePRNGBlocking:SUN
130
131#
132# Class to instantiate as the javax.security.auth.login.Configuration
133# provider.
134#
135login.configuration.provider=sun.security.provider.ConfigFile
136
137#
138# Default login configuration file
139#
140#login.config.url.1=file:${user.home}/.java.login.config
141
142#
143# Class to instantiate as the system Policy. This is the name of the class
144# that will be used as the Policy object.
145#
146policy.provider=sun.security.provider.PolicyFile
147
148# The default is to have a single system-wide policy file,
149# and a policy file in the user's home directory.
150policy.url.1=file:${java.home}/lib/security/java.policy
151policy.url.2=file:${user.home}/.java.policy
152
153# whether or not we expand properties in the policy file
154# if this is set to false, properties (${...}) will not be expanded in policy
155# files.
156policy.expandProperties=true
157
158# whether or not we allow an extra policy to be passed on the command line
159# with -Djava.security.policy=somefile. Comment out this line to disable
160# this feature.
161policy.allowSystemProperty=true
162
163# whether or not we look into the IdentityScope for trusted Identities
164# when encountering a 1.1 signed JAR file. If the identity is found
165# and is trusted, we grant it AllPermission.
166policy.ignoreIdentityScope=false
167
168#
169# Default keystore type.
170#
171keystore.type=jks
172
173#
vinnie79f6ac42015-05-25 09:18:22 +0100174# Controls compatibility mode for the JKS keystore type.
175#
176# When set to 'true', the JKS keystore type supports loading
177# keystore files in either JKS or PKCS12 format. When set to 'false'
178# it supports loading only JKS keystore files.
179#
180keystore.type.compat=true
181
182#
simonisae1be652013-11-26 16:40:31 +0100183# List of comma-separated packages that start with or equal this string
184# will cause a security exception to be thrown when
185# passed to checkPackageAccess unless the
186# corresponding RuntimePermission ("accessClassInPackage."+package) has
187# been granted.
188package.access=sun.,\
189 com.sun.xml.internal.,\
190 com.sun.imageio.,\
191 com.sun.istack.internal.,\
192 com.sun.jmx.,\
193 com.sun.media.sound.,\
simonise27e5a02014-02-26 19:26:42 +0100194 com.sun.naming.internal.,\
simonisae1be652013-11-26 16:40:31 +0100195 com.sun.proxy.,\
196 com.sun.corba.se.,\
197 com.sun.org.apache.bcel.internal.,\
198 com.sun.org.apache.regexp.internal.,\
199 com.sun.org.apache.xerces.internal.,\
200 com.sun.org.apache.xpath.internal.,\
201 com.sun.org.apache.xalan.internal.extensions.,\
202 com.sun.org.apache.xalan.internal.lib.,\
203 com.sun.org.apache.xalan.internal.res.,\
204 com.sun.org.apache.xalan.internal.templates.,\
205 com.sun.org.apache.xalan.internal.utils.,\
206 com.sun.org.apache.xalan.internal.xslt.,\
207 com.sun.org.apache.xalan.internal.xsltc.cmdline.,\
208 com.sun.org.apache.xalan.internal.xsltc.compiler.,\
209 com.sun.org.apache.xalan.internal.xsltc.trax.,\
210 com.sun.org.apache.xalan.internal.xsltc.util.,\
211 com.sun.org.apache.xml.internal.res.,\
212 com.sun.org.apache.xml.internal.security.,\
213 com.sun.org.apache.xml.internal.serializer.utils.,\
214 com.sun.org.apache.xml.internal.utils.,\
215 com.sun.org.glassfish.,\
216 com.oracle.xmlns.internal.,\
217 com.oracle.webservices.internal.,\
simonise27e5a02014-02-26 19:26:42 +0100218 oracle.jrockit.jfr.,\
simonisae1be652013-11-26 16:40:31 +0100219 org.jcp.xml.dsig.internal.,\
220 jdk.internal.,\
221 jdk.nashorn.internal.,\
weijun3cb44232014-07-23 09:25:53 +0800222 jdk.nashorn.tools.,\
223 com.sun.activation.registries.
simonisae1be652013-11-26 16:40:31 +0100224
225#
226# List of comma-separated packages that start with or equal this string
227# will cause a security exception to be thrown when
228# passed to checkPackageDefinition unless the
229# corresponding RuntimePermission ("defineClassInPackage."+package) has
230# been granted.
231#
232# by default, none of the class loaders supplied with the JDK call
233# checkPackageDefinition.
234#
235package.definition=sun.,\
236 com.sun.xml.internal.,\
237 com.sun.imageio.,\
238 com.sun.istack.internal.,\
239 com.sun.jmx.,\
240 com.sun.media.sound.,\
simonise27e5a02014-02-26 19:26:42 +0100241 com.sun.naming.internal.,\
simonisae1be652013-11-26 16:40:31 +0100242 com.sun.proxy.,\
243 com.sun.corba.se.,\
244 com.sun.org.apache.bcel.internal.,\
245 com.sun.org.apache.regexp.internal.,\
246 com.sun.org.apache.xerces.internal.,\
247 com.sun.org.apache.xpath.internal.,\
248 com.sun.org.apache.xalan.internal.extensions.,\
249 com.sun.org.apache.xalan.internal.lib.,\
250 com.sun.org.apache.xalan.internal.res.,\
251 com.sun.org.apache.xalan.internal.templates.,\
252 com.sun.org.apache.xalan.internal.utils.,\
253 com.sun.org.apache.xalan.internal.xslt.,\
254 com.sun.org.apache.xalan.internal.xsltc.cmdline.,\
255 com.sun.org.apache.xalan.internal.xsltc.compiler.,\
256 com.sun.org.apache.xalan.internal.xsltc.trax.,\
257 com.sun.org.apache.xalan.internal.xsltc.util.,\
258 com.sun.org.apache.xml.internal.res.,\
259 com.sun.org.apache.xml.internal.security.,\
260 com.sun.org.apache.xml.internal.serializer.utils.,\
261 com.sun.org.apache.xml.internal.utils.,\
262 com.sun.org.glassfish.,\
263 com.oracle.xmlns.internal.,\
264 com.oracle.webservices.internal.,\
simonise27e5a02014-02-26 19:26:42 +0100265 oracle.jrockit.jfr.,\
simonisae1be652013-11-26 16:40:31 +0100266 org.jcp.xml.dsig.internal.,\
267 jdk.internal.,\
268 jdk.nashorn.internal.,\
weijun3cb44232014-07-23 09:25:53 +0800269 jdk.nashorn.tools.,\
270 com.sun.activation.registries.
simonisae1be652013-11-26 16:40:31 +0100271
272#
273# Determines whether this properties file can be appended to
274# or overridden on the command line via -Djava.security.properties
275#
276security.overridePropertiesFile=true
277
278#
279# Determines the default key and trust manager factory algorithms for
280# the javax.net.ssl package.
281#
282ssl.KeyManagerFactory.algorithm=SunX509
283ssl.TrustManagerFactory.algorithm=PKIX
284
285#
286# The Java-level namelookup cache policy for successful lookups:
287#
288# any negative value: caching forever
289# any positive value: the number of seconds to cache an address for
290# zero: do not cache
291#
292# default value is forever (FOREVER). For security reasons, this
293# caching is made forever when a security manager is set. When a security
294# manager is not set, the default behavior in this implementation
295# is to cache for 30 seconds.
296#
297# NOTE: setting this to anything other than the default value can have
298# serious security implications. Do not set it unless
299# you are sure you are not exposed to DNS spoofing attack.
300#
301#networkaddress.cache.ttl=-1
302
303# The Java-level namelookup cache policy for failed lookups:
304#
305# any negative value: cache forever
306# any positive value: the number of seconds to cache negative lookup results
307# zero: do not cache
308#
309# In some Microsoft Windows networking environments that employ
310# the WINS name service in addition to DNS, name service lookups
311# that fail may take a noticeably long time to return (approx. 5 seconds).
312# For this reason the default caching policy is to maintain these
313# results for 10 seconds.
314#
315#
316networkaddress.cache.negative.ttl=10
317
318#
319# Properties to configure OCSP for certificate revocation checking
320#
321
322# Enable OCSP
323#
324# By default, OCSP is not used for certificate revocation checking.
325# This property enables the use of OCSP when set to the value "true".
326#
327# NOTE: SocketPermission is required to connect to an OCSP responder.
328#
329# Example,
330# ocsp.enable=true
331
332#
333# Location of the OCSP responder
334#
335# By default, the location of the OCSP responder is determined implicitly
336# from the certificate being validated. This property explicitly specifies
337# the location of the OCSP responder. The property is used when the
338# Authority Information Access extension (defined in RFC 3280) is absent
339# from the certificate or when it requires overriding.
340#
341# Example,
342# ocsp.responderURL=http://ocsp.example.net:80
343
344#
345# Subject name of the OCSP responder's certificate
346#
347# By default, the certificate of the OCSP responder is that of the issuer
348# of the certificate being validated. This property identifies the certificate
349# of the OCSP responder when the default does not apply. Its value is a string
350# distinguished name (defined in RFC 2253) which identifies a certificate in
351# the set of certificates supplied during cert path validation. In cases where
352# the subject name alone is not sufficient to uniquely identify the certificate
353# then both the "ocsp.responderCertIssuerName" and
354# "ocsp.responderCertSerialNumber" properties must be used instead. When this
355# property is set then those two properties are ignored.
356#
357# Example,
358# ocsp.responderCertSubjectName="CN=OCSP Responder, O=XYZ Corp"
359
360#
361# Issuer name of the OCSP responder's certificate
362#
363# By default, the certificate of the OCSP responder is that of the issuer
364# of the certificate being validated. This property identifies the certificate
365# of the OCSP responder when the default does not apply. Its value is a string
366# distinguished name (defined in RFC 2253) which identifies a certificate in
367# the set of certificates supplied during cert path validation. When this
368# property is set then the "ocsp.responderCertSerialNumber" property must also
369# be set. When the "ocsp.responderCertSubjectName" property is set then this
370# property is ignored.
371#
372# Example,
373# ocsp.responderCertIssuerName="CN=Enterprise CA, O=XYZ Corp"
374
375#
376# Serial number of the OCSP responder's certificate
377#
378# By default, the certificate of the OCSP responder is that of the issuer
379# of the certificate being validated. This property identifies the certificate
380# of the OCSP responder when the default does not apply. Its value is a string
381# of hexadecimal digits (colon or space separators may be present) which
382# identifies a certificate in the set of certificates supplied during cert path
383# validation. When this property is set then the "ocsp.responderCertIssuerName"
384# property must also be set. When the "ocsp.responderCertSubjectName" property
385# is set then this property is ignored.
386#
387# Example,
388# ocsp.responderCertSerialNumber=2A:FF:00
389
390#
391# Policy for failed Kerberos KDC lookups:
392#
393# When a KDC is unavailable (network error, service failure, etc), it is
394# put inside a blacklist and accessed less often for future requests. The
395# value (case-insensitive) for this policy can be:
396#
397# tryLast
398# KDCs in the blacklist are always tried after those not on the list.
399#
400# tryLess[:max_retries,timeout]
401# KDCs in the blacklist are still tried by their order in the configuration,
402# but with smaller max_retries and timeout values. max_retries and timeout
403# are optional numerical parameters (default 1 and 5000, which means once
404# and 5 seconds). Please notes that if any of the values defined here is
405# more than what is defined in krb5.conf, it will be ignored.
406#
407# Whenever a KDC is detected as available, it is removed from the blacklist.
408# The blacklist is reset when krb5.conf is reloaded. You can add
409# refreshKrb5Config=true to a JAAS configuration file so that krb5.conf is
410# reloaded whenever a JAAS authentication is attempted.
411#
412# Example,
413# krb5.kdc.bad.policy = tryLast
414# krb5.kdc.bad.policy = tryLess:2,2000
415krb5.kdc.bad.policy = tryLast
416
417# Algorithm restrictions for certification path (CertPath) processing
418#
419# In some environments, certain algorithms or key lengths may be undesirable
420# for certification path building and validation. For example, "MD2" is
421# generally no longer considered to be a secure hash algorithm. This section
422# describes the mechanism for disabling algorithms based on algorithm name
423# and/or key length. This includes algorithms used in certificates, as well
424# as revocation information such as CRLs and signed OCSP Responses.
425#
426# The syntax of the disabled algorithm string is described as this Java
427# BNF-style:
428# DisabledAlgorithms:
429# " DisabledAlgorithm { , DisabledAlgorithm } "
430#
431# DisabledAlgorithm:
432# AlgorithmName [Constraint]
433#
434# AlgorithmName:
435# (see below)
436#
437# Constraint:
438# KeySizeConstraint
439#
440# KeySizeConstraint:
441# keySize Operator DecimalInteger
442#
443# Operator:
444# <= | < | == | != | >= | >
445#
446# DecimalInteger:
447# DecimalDigits
448#
449# DecimalDigits:
450# DecimalDigit {DecimalDigit}
451#
452# DecimalDigit: one of
453# 1 2 3 4 5 6 7 8 9 0
454#
455# The "AlgorithmName" is the standard algorithm name of the disabled
456# algorithm. See "Java Cryptography Architecture Standard Algorithm Name
457# Documentation" for information about Standard Algorithm Names. Matching
458# is performed using a case-insensitive sub-element matching rule. (For
459# example, in "SHA1withECDSA" the sub-elements are "SHA1" for hashing and
460# "ECDSA" for signatures.) If the assertion "AlgorithmName" is a
461# sub-element of the certificate algorithm name, the algorithm will be
462# rejected during certification path building and validation. For example,
463# the assertion algorithm name "DSA" will disable all certificate algorithms
464# that rely on DSA, such as NONEwithDSA, SHA1withDSA. However, the assertion
465# will not disable algorithms related to "ECDSA".
466#
467# A "Constraint" provides further guidance for the algorithm being specified.
468# The "KeySizeConstraint" requires a key of a valid size range if the
469# "AlgorithmName" is of a key algorithm. The "DecimalInteger" indicates the
470# key size specified in number of bits. For example, "RSA keySize <= 1024"
471# indicates that any RSA key with key size less than or equal to 1024 bits
472# should be disabled, and "RSA keySize < 1024, RSA keySize > 2048" indicates
473# that any RSA key with key size less than 1024 or greater than 2048 should
474# be disabled. Note that the "KeySizeConstraint" only makes sense to key
475# algorithms.
476#
477# Note: This property is currently used by Oracle's PKIX implementation. It
478# is not guaranteed to be examined and used by other implementations.
479#
480# Example:
481# jdk.certpath.disabledAlgorithms=MD2, DSA, RSA keySize < 2048
482#
483#
484jdk.certpath.disabledAlgorithms=MD2, RSA keySize < 1024
485
486# Algorithm restrictions for Secure Socket Layer/Transport Layer Security
487# (SSL/TLS) processing
488#
489# In some environments, certain algorithms or key lengths may be undesirable
490# when using SSL/TLS. This section describes the mechanism for disabling
xuelei64accf52014-10-24 11:49:24 +0000491# algorithms during SSL/TLS security parameters negotiation, including
492# protocol version negotiation, cipher suites selection, peer authentication
493# and key exchange mechanisms.
494#
495# Disabled algorithms will not be negotiated for SSL/TLS connections, even
496# if they are enabled explicitly in an application.
simonisae1be652013-11-26 16:40:31 +0100497#
498# For PKI-based peer authentication and key exchange mechanisms, this list
499# of disabled algorithms will also be checked during certification path
500# building and validation, including algorithms used in certificates, as
501# well as revocation information such as CRLs and signed OCSP Responses.
502# This is in addition to the jdk.certpath.disabledAlgorithms property above.
503#
504# See the specification of "jdk.certpath.disabledAlgorithms" for the
505# syntax of the disabled algorithm string.
506#
507# Note: This property is currently used by Oracle's JSSE implementation.
508# It is not guaranteed to be examined and used by other implementations.
509#
510# Example:
xuelei64accf52014-10-24 11:49:24 +0000511# jdk.tls.disabledAlgorithms=MD5, SSLv3, DSA, RSA keySize < 2048
asaha81743b52015-05-29 10:15:38 -0700512jdk.tls.disabledAlgorithms=SSLv3, RC4, DH keySize < 768
asmotrake1347b42015-03-03 16:26:24 -0800513
514# Legacy algorithms for Secure Socket Layer/Transport Layer Security (SSL/TLS)
515# processing in JSSE implementation.
516#
517# In some environments, a certain algorithm may be undesirable but it
518# cannot be disabled because of its use in legacy applications. Legacy
519# algorithms may still be supported, but applications should not use them
520# as the security strength of legacy algorithms are usually not strong enough
521# in practice.
522#
523# During SSL/TLS security parameters negotiation, legacy algorithms will
524# not be negotiated unless there are no other candidates.
525#
526# The syntax of the disabled algorithm string is described as this Java
527# BNF-style:
528# LegacyAlgorithms:
529# " LegacyAlgorithm { , LegacyAlgorithm } "
530#
531# LegacyAlgorithm:
532# AlgorithmName (standard JSSE algorithm name)
533#
534# See the specification of security property "jdk.certpath.disabledAlgorithms"
535# for the syntax and description of the "AlgorithmName" notation.
536#
537# Per SSL/TLS specifications, cipher suites have the form:
538# SSL_KeyExchangeAlg_WITH_CipherAlg_MacAlg
539# or
540# TLS_KeyExchangeAlg_WITH_CipherAlg_MacAlg
541#
542# For example, the cipher suite TLS_RSA_WITH_AES_128_CBC_SHA uses RSA as the
543# key exchange algorithm, AES_128_CBC (128 bits AES cipher algorithm in CBC
544# mode) as the cipher (encryption) algorithm, and SHA-1 as the message digest
545# algorithm for HMAC.
546#
547# The LegacyAlgorithm can be one of the following standard algorithm names:
548# 1. JSSE cipher suite name, e.g., TLS_RSA_WITH_AES_128_CBC_SHA
549# 2. JSSE key exchange algorithm name, e.g., RSA
550# 3. JSSE cipher (encryption) algorithm name, e.g., AES_128_CBC
igerasim558371e2015-04-24 13:59:30 +0300551# 4. JSSE message digest algorithm name, e.g., SHA
asmotrake1347b42015-03-03 16:26:24 -0800552#
553# See SSL/TLS specifications and "Java Cryptography Architecture Standard
554# Algorithm Name Documentation" for information about the algorithm names.
555#
556# Note: This property is currently used by Oracle's JSSE implementation.
557# It is not guaranteed to be examined and used by other implementations.
558# There is no guarantee the property will continue to exist or be of the
559# same syntax in future releases.
560#
561# Example:
562# jdk.tls.legacyAlgorithms=DH_anon, DES_CBC, SSL_RSA_WITH_RC4_128_MD5
563#
564jdk.tls.legacyAlgorithms= \
565 K_NULL, C_NULL, M_NULL, \
566 DHE_DSS_EXPORT, DHE_RSA_EXPORT, DH_anon_EXPORT, DH_DSS_EXPORT, \
567 DH_RSA_EXPORT, RSA_EXPORT, \
568 DH_anon, ECDH_anon, \
569 RC4_128, RC4_40, DES_CBC, DES40_CBC
xuelei56fcfa02015-07-23 09:51:31 +0100570
571# The pre-defined default finite field Diffie-Hellman ephemeral (DHE)
572# parameters for Transport Layer Security (SSL/TLS/DTLS) processing.
573#
574# In traditional SSL/TLS/DTLS connections where finite field DHE parameters
575# negotiation mechanism is not used, the server offers the client group
576# parameters, base generator g and prime modulus p, for DHE key exchange.
577# It is recommended to use dynamic group parameters. This property defines
578# a mechanism that allows you to specify custom group parameters.
579#
580# The syntax of this property string is described as this Java BNF-style:
581# DefaultDHEParameters:
582# DefinedDHEParameters { , DefinedDHEParameters }
583#
584# DefinedDHEParameters:
585# "{" DHEPrimeModulus , DHEBaseGenerator "}"
586#
587# DHEPrimeModulus:
588# HexadecimalDigits
589#
590# DHEBaseGenerator:
591# HexadecimalDigits
592#
593# HexadecimalDigits:
594# HexadecimalDigit { HexadecimalDigit }
595#
596# HexadecimalDigit: one of
597# 0 1 2 3 4 5 6 7 8 9 A B C D E F a b c d e f
598#
599# Whitespace characters are ignored.
600#
601# The "DefinedDHEParameters" defines the custom group parameters, prime
602# modulus p and base generator g, for a particular size of prime modulus p.
603# The "DHEPrimeModulus" defines the hexadecimal prime modulus p, and the
604# "DHEBaseGenerator" defines the hexadecimal base generator g of a group
605# parameter. It is recommended to use safe primes for the custom group
606# parameters.
607#
608# If this property is not defined or the value is empty, the underlying JSSE
609# provider's default group parameter is used for each connection.
610#
611# If the property value does not follow the grammar, or a particular group
612# parameter is not valid, the connection will fall back and use the
613# underlying JSSE provider's default group parameter.
614#
615# Note: This property is currently used by OpenJDK's JSSE implementation. It
616# is not guaranteed to be examined and used by other implementations.
617#
618# Example:
619# jdk.tls.server.defaultDHEParameters=
620# { \
621# FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1 \
622# 29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD \
623# EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245 \
624# E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED \
625# EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE65381 \
626# FFFFFFFF FFFFFFFF, 2}