Bump OpenSSL master in CI, handle rejection of degenerate RSA ciphertexts - #15432
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OpenSSL e5d2eaee1 (openssl/openssl#32124) now enforces 1 < ciphertext < n-1 in RSA private decryption on all builds, not just the FIPS module. Add a CRYPTOGRAPHY_OPENSSL_410_OR_GREATER constant and expect the Wycheproof SmallIntegerCiphertext OAEP cases to fail there, matching the existing AWS-LC and FIPS behavior. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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…RSA ciphertext handling (#15479) * Bump BoringSSL, OpenSSL, AWS-LC in CI * Revert "Bump OpenSSL master in CI, handle rejection of degenerate RSA ciphertexts (#15432)" This reverts commit ccb3c6c, except for the CI pins, which are kept at the latest versions. OpenSSL 3b6a8a1fd0 (openssl/openssl#32314) moved the 1 < c < n-1 bound in RSA private decryption back behind FIPS_MODULE (applying it to RSASVE separately), so non-FIPS OpenSSL 4.1 no longer rejects the Wycheproof SmallIntegerCiphertext OAEP cases and the CRYPTOGRAPHY_OPENSSL_410_OR_GREATER handling is no longer needed. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: pyca-boringbot[bot] <pyca-boringbot[bot]+106132319@users.noreply.github.com> Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
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Supersedes #15430 (cherry-picks its bump commit).
The new OpenSSL master pin contains only openssl/openssl#32124, which moved the SP800-56Br2
1 < ciphertext < n-1check inrsa_ossl_private_decryptout of#ifdef FIPS_MODULE, so all OpenSSL builds >= 4.1 now reject degenerate RSA ciphertexts. This broke the Wycheproofrsa_oaep_misc_test.jsoncase withct = 1(tcId 376, flaggedSmallIntegerCiphertext), which previously round-tripped on non-FIPS OpenSSL.This adds a
CRYPTOGRAPHY_OPENSSL_410_OR_GREATERconstant and extends the existing AWS-LC/FIPS carve-out in the Wycheproof OAEP test to cover it, so those cases are now expected to raiseValueError.🤖 Generated with Claude Code