AnyPS5/docs/dev/debt/libSceLibreSsl3.md

libSceLibreSsl3 technical debt

Unknown function info

• libSceLibreSsl3 pending exports - 84 named callable exports, excluding CRYPTO_memcmp, MD5 and SHA1, remain unimplemented from the PS5 3.20 export table, cross-checked against the same module in PS5 firmware 13.60. Their signatures and behaviour are unverified; the declarations use the no-parameter unknown-signature convention and throw through NotImplemented_nid_no_patch.

Functional

• CRYPTO_memcmp follows the public LibreSSL signature and equality contract, without PS5 verification. The exact nonzero result for unequal buffers is unspecified by that contract. Content-independent execution of its volatile byte reads still depends on the compiler; inspect optimized code when changing toolchains. Closes when: measured on a PS5 and the supported toolchains' generated code is checked.
• MD5 and SHA1 (libSceLibreSsl3) - follow LibreSSL's md5.c, sha1.c and hash through libSceLibreSsl's MD5_* and SHA1_*. A null digest buffer, which LibreSSL 4.0.0 does not check, throws. Nothing is checked on the console