DeriveKey() [1/2]

static byte[] System.Security.Cryptography.HKDF.DeriveKey ( HashAlgorithmName hashAlgorithmName, byte[] ikm, int outputLength, byte?[] salt = null, byte?[] info = null )

inlinestatic

Definition at line 135 of file HKDF.cs.

    {
        if (ikm == null)
        {
            throw new ArgumentNullException("ikm");
        }
        if (outputLength <= 0)
        {
            throw new ArgumentOutOfRangeException("outputLength", System.SR.ArgumentOutOfRange_NeedPosNum);
        }
        int num = HashLength(hashAlgorithmName);
        int num2 = 255 * num;
        if (outputLength > num2)
        {
            throw new ArgumentOutOfRangeException("outputLength", System.SR.Format(System.SR.Cryptography_Okm_TooLarge, num2));
        }
        Span<byte> span = stackalloc byte[num];
        Extract(hashAlgorithmName, num, ikm, salt, span);
        byte[] array = new byte[outputLength];
        Expand(hashAlgorithmName, num, span, array, info);
        return array;
    }

References System.SR.ArgumentOutOfRange_NeedPosNum, System.array, System.SR.Cryptography_Okm_TooLarge, System.Security.Cryptography.HKDF.Expand(), System.Security.Cryptography.HKDF.Extract(), System.SR.Format(), System.Security.Cryptography.HKDF.HashLength(), and System.info.