block cipher: DES-EDE3, AES, Serpent (Serpent is slower than AES but has a larger security margin and is not vulnerable to timing attacks.)
stream cipher: any of the above block ciphers in CTR mode
fast stream cipher: Salsa20, Panama, Sosemanuk (available in version 5.5)
hash function: SHA-256, SHA-512, Whirlpool
message authentication code: HMAC/SHA1 or HMAC with one of the above hash functions
public key encryption: RSA/OAEP/SHA1, ECIES
signature: RSA/PSS/H, ECDSA/H, which H one of the above hash functions
key agreement: DH, ECDH
random number generator: RandomPool, AutoSeededRandomPool

See http://www.cryptopp.com/benchmarks.html for how fast these algorithms are.
2007-Apr-16 4:48pm weidai, weidai