tur/digest
stdlib/digest.tur
SHA-256 and MD5 checksum implementations.
Since: Phase B1
defn
digest/sha256
(digest/sha256 [data :int len :int] :int)
compute the SHA-256 digest of a byte buffer.
Parameters
| data | pointer (as :int) to the byte data | |
| len | number of bytes to hash |
Returns
A heap-allocated vec (:int) of 32 byte values (each 0-255). Free with digest/bytes-free.
Example
(digest/sha256 buf 32) ; => vec of 32 byte ints
Since: Phase B2
defn
digest/sha256-hex
(digest/sha256-hex [data :int len :int] :cstr)
compute the SHA-256 digest as a lowercase hex string.
Parameters
| data | pointer (as :int) to the byte data | |
| len | number of bytes to hash |
Returns
A heap-allocated 65-byte NUL-terminated cstr (64 hex chars). The caller must free.
Example
(digest/sha256-hex buf 4) ; => "9f86d081..."
Since: Phase B2
defn
digest/md5
(digest/md5 [data :int len :int] :int)
compute the MD5 digest of a byte buffer.
Parameters
| data | pointer (as :int) to the byte data | |
| len | number of bytes to hash |
Returns
A heap-allocated vec (:int) of 16 byte values (each 0-255). Free with digest/bytes-free.
Example
(digest/md5 buf 16) ; => vec of 16 byte ints
Since: Phase B2
defn
digest/md5-hex
(digest/md5-hex [data :int len :int] :cstr)
compute the MD5 digest as a lowercase hex string.
Parameters
| data | pointer (as :int) to the byte data | |
| len | number of bytes to hash |
Returns
A heap-allocated 33-byte NUL-terminated cstr (32 hex chars). The caller must free.
Example
(digest/md5-hex buf 4) ; => "93b885ad..."
Since: Phase B2
defn
digest/bytes-free
(digest/bytes-free [v :int] :void)
free a digest byte vec returned by digest/sha256 or digest/md5.
Parameters
| v | vec pointer returned by a digest function |
Example
(digest/bytes-free my-digest)
Since: Phase B2