As3 Crypto is a cryptography library written in Actionscript 3 that provides several common algorithms, as well as TLS 1.0 support. The library is offered under the BSD license, and include several derivative works from Java, C and javascript sources.

• AS3 Crypto Library Page
• Actionscript Cryptography Demo Page

• TLS 1.0 support, exposed through TLSSocket and TLSEngine classes
• X.509 Certificate support, including parsing, and validation
• built-in list of common root Certificate Authorities
• symmetric ciphers: AES, Blowfish, DES, 3DES, XTEA, RC4
• confidentiality modes: CTR, CBC, CFB, CFB-8, OFB, ECB
• public key crypto: RSA (encryption, decryption, signing, verifying and key generation)
• padding: PKCS#1 (type 1 and 2), PKCS#5
• BigInteger library
• hashing function: SHA-256, SHA-224, SHA-1, MD5, MD2
• HMAC support
• prng: TLSPRF and stream-cypher-based PRNG.
• minimal ASN-1/DER support for PEM key parsing and X-509 cert parsing
• Crypto - Shortcut class to access many classes above.
• Hex, Base64 - Static methods to convert binary data to and from text formats