Rebex Security Releases

Released: Jun 29, 2023

Updates in 7.0.8581


  • Security: Added Argon2 class which implements the Argon2 memory-hard password hash algorithm.
  • Security: Added Blake2b, Blake2b256, Blake2b384 and Blake2b512 classes which implement the BLAKE2 cryptographic hash and MAC algorithm.
  • Security: Added Rebex.Security.Cryptography.HKDF class.
  • Cryptography: Added API for CRL distribution endpoints with multiple CRL entries.
  • Cryptography: Added Certificate.Bind methods.
  • Cryptography: Added CertificateStoreName.WebHosting enum value.
  • Cryptography...

Released: Jun 28, 2023

Updates in R6.14


  • All: Fixed problems in finalizer logic.
  • Cryptography: Fixed support for ECDSA private key formats with optional public key.

Released: Jun 6, 2023

Updates in R6.13


  • Cryptography: Improved support for SignatureHashAlgorithm.MD5SHA1 in Microsoft .NET 5 and higher in FIPS-only mode.


  • Cryptography: Fixed lifecycle of AsymmetricKeyAlgorithm based on RSA CSP.

Released: Apr 18, 2023

Updates in R6.12


  • Common: Fixed rare race condition in scheduled action infrastructure.

Released: Jan 31, 2023

Updates in R6.11


  • Common: Improved compatibility with Microsoft Windows 2000.


  • Cryptography: Fixed CRL retrieval for certificate with multiple CRL distribution endpoints.
  • Common: Fixed potential premature release of an unmanaged buffer in SSPI interop code.

Released: Dec 2, 2022

Updates in R6.10


  • Cryptography: Added workaround for broken X25519 implementation in early versions of Windows 10 (version 1507 and 1511).
  • Common: Fixed Windows Extended Protection in 64-bit Windows applications.

Released: Nov 8, 2022

Updates in R6.9


  • Added support for Microsoft .NET 7 - This release adds a new set of binaries targeting .NET 7. It supports all .NET 7 platforms:
    • Microsoft Windows (x64, x86, ARM64).
    • Linux (x64, ARM32, ARM64).
    • Apple macOS (x64).
    • Android.
    • Apple tvOS.


  • Cryptography: Fixed SHA-2 support on pre-SP3 versions of Windows XP.

Released: Oct 25, 2022

Updates in R6.8


  • Cryptography: Added SSE2 implementation of ChaCha20 for Microsoft .NET 5.0 or higher.

Released: Oct 5, 2022

Updates in R6.7


  • All: This release is now properly code-signed again. TSA certificate validity was too short in R6.6 due to DigiCert's mistake.

Released: Sep 16, 2022

Updates in R6.6


  • Cryptography: Added GetPrivateKeyAlgorithm/​GetPublicKeyAlgorithm methods to Certificate class.