HASH (Version 5.7.3)

    x = HASH(method, data [ ,ret_type [ ,length ]])
Parameters:
    method:   Hash method to use.
	data:     The data to be hashed.
	ret_type: What format the data should be returned in.
	length:   The length of "data".
	
method can be one of the following types:
        "sha512"     "whirlpool"     "tiger"
        "sha384"     "ripemd320"     "md5"
        "sha256"     "ripemd256"     "md5"
        "sha224"     "ripemd160"     "md4"
        "sha1"       "ripemd128"     "md2"

ret_type can be:
        0 (default) - As-is
        1 - Hex
        2 - Base64

If "length" is not specified, the full length of "data" is used.

Examples:
	hash("sha1","Hello","1") returns
		"F7FF9E8B7BB2E09B70935A5D785E0CC5D9D0ABF0"
	hash("sha1","Hello","2") returns
		"9/+ei3uy4Jtwk1pdeF4MxdnQq/A="


HMAC_HASH (Version 5.7.4)
x = HMAC_HASH(method, data, key [ ,ret_type [ ,length ]])
Parameters:
    method:   Hash method to use.
	data:     The data to be hashed.
	key:      Your HMAC key.
	ret_type: What format the data should be returned in.
	length:   The length of "data".
	
method can be one of the following types:
        "sha512"     "whirlpool"     "tiger"
        "sha384"     "ripemd320"     "md5"
        "sha256"     "ripemd256"     "md5"
        "sha224"     "ripemd160"     "md4"
        "sha1"       "ripemd128"     "md2"

ret_type can be:
        0 (default) - As-is
        1 - Hex
        2 - Base64

If "length" is not specified, the full length of "data" is used.