On Wed, 30 Jul 2025 07:25:57 GMT, Valerie Peng <valer...@openjdk.org> wrote:
>> This enhancement introduces a new security property >> "jdk.crypto.disabledAlgorithms" which can be leveraged to disable algorithms >> for JCE/JCA crypto services. For now, only Cipher, KeyStore, MessageDigest, >> and Signature services support this new security property. The support can >> be expanded later to cover more services if needed. Note that this security >> property is meant to disable algorithms irrespective of providers. If the >> algorithm is found to be disabled, it will be rejected before reaching out >> to provider(s) for the corresponding implementation(s). >> >> A few implementation notes: >> 1) The specified security property value is lazily loaded and all changes >> after it's been loaded are ignored. Invalid entries, e.g. wrong syntax, are >> ignored and removed. The algorithm name check is case-insensitive. If a >> disabled algorithm is known to has an object identifier (oid) by JDK, this >> oid and its aliases is also added to the disabled services. >> 2) The algorithm name checking impl is based on the >> sun.security.util.AlgorithmConstraints class, but without the decomposing >> and different constraints. >> 3) The hardwiring of NONEwithRSA signature to RSA/ECB/PKCS1Padding cipher in >> java.security.Signature class is removed. Instead, this is moved to the >> provider level, i.e. SunJCE and SunPKCS11 provider are changed to claim the >> NONEwithRSA signature support. Disabling one will not affect the other. >> >> CSR will be filed once the review is wrapping up. >> >> Thanks~ >> Valerie > > Valerie Peng has updated the pull request incrementally with one additional > commit since the last revision: > > Address review comments from Sean and Tony. src/java.base/share/conf/security/java.security line 775: > 773: > 774: # > 775: # Algorithm restrictions for Java Crypto API services Nit: missing period. src/java.base/share/conf/security/java.security line 789: > 787: # Service.AlgorithmName > 788: # > 789: # Service: (one of the following, more service may be added later) s/service/services/ src/java.base/share/conf/security/java.security line 801: > 799: # its algorithm is the transformation string. > 800: # > 801: # Note: Entries with unsupported services will be ignored Suggest: Services with unrecognized or unsupported algorithms will be ignored. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/26377#discussion_r2246082726 PR Review Comment: https://git.openjdk.org/jdk/pull/26377#discussion_r2246084150 PR Review Comment: https://git.openjdk.org/jdk/pull/26377#discussion_r2246087628
