SAS005 uses a fixed key, a 64bit random salt, the SHA256 hash, and 10000 iterations to generate an encryption key for AES.
SAS003 uses a fixed key, a 16bit random salt, the SHA1 hash, and 1200 iterations to generate an encryption key for AES.
Due to the use of a longer salt, better hash algorithm, and is hashed for more iterations, SAS005 is more secure.