Botan 是一个 C++ 的加密算法库，支持 AES, DES, SHA-1, RSA, DSA, Diffie-Hellman 等多种算法，支持 X.509 认证以及CRLs 和 PKCS #10
1. This release adds support for reading SSLv2 client hellos, which some applications still send for compatibility with SSLv2-only servers.
2. TLS ciphersuites using the South Korean... SEED block cipher are now supported.
3. The Comb4P hash function combiner is now included.
4. A bug that caused raw (unhashed, unpadded) signatures of messages beginning with 0 bytes to be rejected has been fixed