Exemple #1
0
        public byte[] Hash(
            Key key,
            ReadOnlySpan <byte> data,
            int hashSize)
        {
            if (key == null)
            {
                throw Error.ArgumentNull_Key(nameof(key));
            }
            if (key.Algorithm != this)
            {
                throw Error.Argument_KeyWrongAlgorithm(nameof(key), key.Algorithm.GetType().FullName, GetType().FullName);
            }
            if (hashSize < MinHashSize || hashSize > MaxHashSize)
            {
                throw Error.ArgumentOutOfRange_HashSize(nameof(hashSize), hashSize.ToString(), MinHashSize.ToString(), MaxHashSize.ToString());
            }

            byte[] hash = new byte[hashSize];
            HashCore(key.Handle, data, hash);
            return(hash);
        }
Exemple #2
0
        public void Hash(
            Key key,
            ReadOnlySpan <byte> data,
            Span <byte> hash)
        {
            if (key == null)
            {
                throw Error.ArgumentNull_Key(nameof(key));
            }
            if (key.Algorithm != this)
            {
                throw Error.Argument_KeyWrongAlgorithm(nameof(key), key.Algorithm.GetType().FullName, GetType().FullName);
            }
            if (hash.Length < MinHashSize || hash.Length > MaxHashSize)
            {
                throw Error.Argument_HashSize(nameof(hash), hash.Length.ToString(), MinHashSize.ToString(), MaxHashSize.ToString());
            }

            HashCore(key.Handle, data, hash);
        }
Exemple #3
0
        public void Verify(
            Key key,
            ReadOnlySpan <byte> data,
            ReadOnlySpan <byte> hash)
        {
            if (key == null)
            {
                throw Error.ArgumentNull_Key(nameof(key));
            }
            if (key.Algorithm != this)
            {
                throw Error.Argument_KeyWrongAlgorithm(nameof(key), key.Algorithm.GetType().FullName, GetType().FullName);
            }
            if (hash.Length < MinHashSize || hash.Length > MaxHashSize)
            {
                throw Error.Argument_HashSize(nameof(hash), hash.Length.ToString(), MinHashSize.ToString(), MaxHashSize.ToString());
            }

            if (!TryVerifyCore(key.Handle, data, hash))
            {
                throw Error.Cryptographic_VerificationFailed();
            }
        }