| Safe Haskell | Safe-Inferred |
|---|---|
| Language | Haskell98 |
Data.Digest.Pure.SHA
Contents
Description
Pure implementations of the SHA suite of hash functions. The implementation is basically an unoptimized translation of FIPS 180-2 into Haskell. If you're looking for performance, you probably won't find it here.
- data Digest t
- data SHA1State
- data SHA256State
- data SHA512State
- showDigest :: Digest t -> String
- integerDigest :: Digest t -> Integer
- bytestringDigest :: Digest t -> ByteString
- sha1 :: ByteString -> Digest SHA1State
- sha224 :: ByteString -> Digest SHA256State
- sha256 :: ByteString -> Digest SHA256State
- sha384 :: ByteString -> Digest SHA512State
- sha512 :: ByteString -> Digest SHA512State
- sha1Incremental :: Decoder SHA1State
- completeSha1Incremental :: Decoder SHA1State -> Int -> Digest SHA1State
- sha224Incremental :: Decoder SHA256State
- completeSha224Incremental :: Decoder SHA256State -> Int -> Digest SHA256State
- sha256Incremental :: Decoder SHA256State
- completeSha256Incremental :: Decoder SHA256State -> Int -> Digest SHA256State
- sha384Incremental :: Decoder SHA512State
- completeSha384Incremental :: Decoder SHA512State -> Int -> Digest SHA512State
- sha512Incremental :: Decoder SHA512State
- completeSha512Incremental :: Decoder SHA512State -> Int -> Digest SHA512State
- hmacSha1 :: ByteString -> ByteString -> Digest SHA1State
- hmacSha224 :: ByteString -> ByteString -> Digest SHA256State
- hmacSha256 :: ByteString -> ByteString -> Digest SHA256State
- hmacSha384 :: ByteString -> ByteString -> Digest SHA512State
- hmacSha512 :: ByteString -> ByteString -> Digest SHA512State
Digest and related functions
An abstract datatype for digests.
data SHA256State Source
Instances
data SHA512State Source
Instances
showDigest :: Digest t -> String Source
Convert a digest to a string. The digest is rendered as fixed with hexadecimal number.
integerDigest :: Digest t -> Integer Source
Convert a digest to an Integer.
bytestringDigest :: Digest t -> ByteString Source
Convert a digest to a ByteString.
Calculating hashes
sha1 :: ByteString -> Digest SHA1State Source
Compute the SHA-1 hash of the given ByteString. The output is guaranteed to be exactly 160 bits, or 20 bytes, long. This is a good default for programs that need a good, but not necessarily hyper-secure, hash function.
sha224 :: ByteString -> Digest SHA256State Source
Compute the SHA-224 hash of the given ByteString. Note that SHA-224 and SHA-384 differ only slightly from SHA-256 and SHA-512, and use truncated versions of the resulting hashes. So using 224/384 may not, in fact, save you very much ...
sha256 :: ByteString -> Digest SHA256State Source
Compute the SHA-256 hash of the given ByteString. The output is guaranteed to be exactly 256 bits, or 32 bytes, long. If your security requirements are pretty serious, this is a good choice. For truly significant security concerns, however, you might try one of the bigger options.
sha384 :: ByteString -> Digest SHA512State Source
Compute the SHA-384 hash of the given ByteString. Yup, you guessed it, the output will be exactly 384 bits, or 48 bytes, long.
sha512 :: ByteString -> Digest SHA512State Source
For those for whom only the biggest hashes will do, this computes the SHA-512 hash of the given ByteString. The output will be 64 bytes, or 512 bits, long.
sha1Incremental :: Decoder SHA1State Source
Similar to sha1 but use an incremental interface. When the decoder has
been completely fed, completeSha1Incremental must be used so it can
finish successfully.
sha224Incremental :: Decoder SHA256State Source
Similar to sha224 but use an incremental interface. When the decoder has
been completely fed, completeSha224Incremental must be used so it can
finish successfully.
sha256Incremental :: Decoder SHA256State Source
Similar to sha256 but use an incremental interface. When the decoder has
been completely fed, completeSha256Incremental must be used so it can
finish successfully.
sha384Incremental :: Decoder SHA512State Source
Similar to sha384 but use an incremental interface. When the decoder has
been completely fed, completeSha384Incremental must be used so it can
finish successfully.
sha512Incremental :: Decoder SHA512State Source
Similar to sha512 but use an incremental interface. When the decoder has
been completely fed, completeSha512Incremental must be used so it can
finish successfully.
Calculating message authentication codes (MACs)
Arguments
| :: ByteString | secret key |
| -> ByteString | message |
| -> Digest SHA1State | SHA-1 MAC |
Compute an HMAC using SHA-1.
Arguments
| :: ByteString | secret key |
| -> ByteString | message |
| -> Digest SHA256State | SHA-224 MAC |
Compute an HMAC using SHA-224.
Arguments
| :: ByteString | secret key |
| -> ByteString | message |
| -> Digest SHA256State | SHA-256 MAC |
Compute an HMAC using SHA-256.
Arguments
| :: ByteString | secret key |
| -> ByteString | message |
| -> Digest SHA512State | SHA-384 MAC |
Compute an HMAC using SHA-384.
Arguments
| :: ByteString | secret key |
| -> ByteString | message |
| -> Digest SHA512State | SHA-512 MAC |
Compute an HMAC using SHA-512.