Staging: rt28x0: remove unused SHA256 code (ef3e7468) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/staging/rt2860/common/crypt_sha2.c

+0 −257

Original line number	Diff line number	Diff line
		@@ -47,42 +47,7 @@ static const UINT32 SHA1_K[4] = {
		static const UINT32 SHA1_DefaultHashValue[5] = {
		0x67452301UL, 0xefcdab89UL, 0x98badcfeUL, 0x10325476UL, 0xc3d2e1f0UL
		};
		#endif /* SHA1_SUPPORT */


		#ifdef SHA256_SUPPORT
		/* SHA256 functions */
		#define Zsigma_256_0(x) (ROTR32(x,2) ^ ROTR32(x,13) ^ ROTR32(x,22))
		#define Zsigma_256_1(x) (ROTR32(x,6) ^ ROTR32(x,11) ^ ROTR32(x,25))
		#define Sigma_256_0(x) (ROTR32(x,7) ^ ROTR32(x,18) ^ SHR(x,3))
		#define Sigma_256_1(x) (ROTR32(x,17) ^ ROTR32(x,19) ^ SHR(x,10))
		/* SHA256 constants */
		static const UINT32 SHA256_K[64] = {
		0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL,
		0x3956c25bUL, 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL,
		0xd807aa98UL, 0x12835b01UL, 0x243185beUL, 0x550c7dc3UL,
		0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL, 0xc19bf174UL,
		0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL,
		0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL,
		0x983e5152UL, 0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL,
		0xc6e00bf3UL, 0xd5a79147UL, 0x06ca6351UL, 0x14292967UL,
		0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL, 0x53380d13UL,
		0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL,
		0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL,
		0xd192e819UL, 0xd6990624UL, 0xf40e3585UL, 0x106aa070UL,
		0x19a4c116UL, 0x1e376c08UL, 0x2748774cUL, 0x34b0bcb5UL,
		0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL, 0x682e6ff3UL,
		0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL,
		0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL
		};
		static const UINT32 SHA256_DefaultHashValue[8] = {
		0x6a09e667UL, 0xbb67ae85UL, 0x3c6ef372UL, 0xa54ff53aUL,
		0x510e527fUL, 0x9b05688cUL, 0x1f83d9abUL, 0x5be0cd19UL
		};
		#endif /* SHA256_SUPPORT */


		#ifdef SHA1_SUPPORT
		/*
		========================================================================
		Routine Description:
		@@ -310,226 +275,4 @@ VOID RT_SHA1 (
		} /* End of RT_SHA1 */
		#endif /* SHA1_SUPPORT */


		#ifdef SHA256_SUPPORT
		/*
		========================================================================
		Routine Description:
		Initial SHA256_CTX_STRUC

		Arguments:
		pSHA_CTX Pointer to SHA256_CTX_STRUC

		Return Value:
		None

		Note:
		None
		========================================================================
		*/
		VOID SHA256_Init (
		IN SHA256_CTX_STRUC *pSHA_CTX)
		{
		NdisMoveMemory(pSHA_CTX->HashValue, SHA256_DefaultHashValue,
		sizeof(SHA256_DefaultHashValue));
		NdisZeroMemory(pSHA_CTX->Block, SHA256_BLOCK_SIZE);
		pSHA_CTX->MessageLen = 0;
		pSHA_CTX->BlockLen = 0;
		} /* End of SHA256_Init */


		/*
		========================================================================
		Routine Description:
		SHA256 computation for one block (512 bits)

		Arguments:
		pSHA_CTX Pointer to SHA256_CTX_STRUC

		Return Value:
		None

		Note:
		None
		========================================================================
		*/
		VOID SHA256_Hash (
		IN SHA256_CTX_STRUC *pSHA_CTX)
		{
		UINT32 W_i,t;
		UINT32 W[64];
		UINT32 a,b,c,d,e,f,g,h,T1,T2;

		/* Prepare the message schedule, {W_i}, 0 < t < 15 */
		NdisMoveMemory(W, pSHA_CTX->Block, SHA256_BLOCK_SIZE);
		for (W_i = 0; W_i < 16; W_i++)
		W[W_i] = cpu2be32(W[W_i]); /* Endian Swap */
		/* End of for */

		/* SHA256 hash computation */
		/* Initialize the working variables */
		a = pSHA_CTX->HashValue[0];
		b = pSHA_CTX->HashValue[1];
		c = pSHA_CTX->HashValue[2];
		d = pSHA_CTX->HashValue[3];
		e = pSHA_CTX->HashValue[4];
		f = pSHA_CTX->HashValue[5];
		g = pSHA_CTX->HashValue[6];
		h = pSHA_CTX->HashValue[7];

		/* 64 rounds */
		for (t = 0;t < 64;t++) {
		if (t > 15) /* Prepare the message schedule, {W_i}, 16 < t < 63 */
		W[t] = Sigma_256_1(W[t-2]) + W[t-7] + Sigma_256_0(W[t-15]) + W[t-16];
		/* End of if */
		T1 = h + Zsigma_256_1(e) + Ch(e,f,g) + SHA256_K[t] + W[t];
		T2 = Zsigma_256_0(a) + Maj(a,b,c);
		h = g;
		g = f;
		f = e;
		e = d + T1;
		d = c;
		c = b;
		b = a;
		a = T1 + T2;
		} /* End of for */

		/* Compute the i^th intermediate hash value H^(i) */
		pSHA_CTX->HashValue[0] += a;
		pSHA_CTX->HashValue[1] += b;
		pSHA_CTX->HashValue[2] += c;
		pSHA_CTX->HashValue[3] += d;
		pSHA_CTX->HashValue[4] += e;
		pSHA_CTX->HashValue[5] += f;
		pSHA_CTX->HashValue[6] += g;
		pSHA_CTX->HashValue[7] += h;

		NdisZeroMemory(pSHA_CTX->Block, SHA256_BLOCK_SIZE);
		pSHA_CTX->BlockLen = 0;
		} /* End of SHA256_Hash */


		/*
		========================================================================
		Routine Description:
		The message is appended to block. If block size > 64 bytes, the SHA256_Hash
		will be called.

		Arguments:
		pSHA_CTX Pointer to SHA256_CTX_STRUC
		message Message context
		messageLen The length of message in bytes

		Return Value:
		None

		Note:
		None
		========================================================================
		*/
		VOID SHA256_Append (
		IN SHA256_CTX_STRUC *pSHA_CTX,
		IN const UINT8 Message[],
		IN UINT MessageLen)
		{
		UINT appendLen = 0;
		UINT diffLen = 0;

		while (appendLen != MessageLen) {
		diffLen = MessageLen - appendLen;
		if ((pSHA_CTX->BlockLen + diffLen) < SHA256_BLOCK_SIZE) {
		NdisMoveMemory(pSHA_CTX->Block + pSHA_CTX->BlockLen,
		Message + appendLen, diffLen);
		pSHA_CTX->BlockLen += diffLen;
		appendLen += diffLen;
		}
		else
		{
		NdisMoveMemory(pSHA_CTX->Block + pSHA_CTX->BlockLen,
		Message + appendLen, SHA256_BLOCK_SIZE - pSHA_CTX->BlockLen);
		appendLen += (SHA256_BLOCK_SIZE - pSHA_CTX->BlockLen);
		pSHA_CTX->BlockLen = SHA256_BLOCK_SIZE;
		SHA256_Hash(pSHA_CTX);
		} /* End of if */
		} /* End of while */
		pSHA_CTX->MessageLen += MessageLen;
		} /* End of SHA256_Append */


		/*
		========================================================================
		Routine Description:
		1. Append bit 1 to end of the message
		2. Append the length of message in rightmost 64 bits
		3. Transform the Hash Value to digest message

		Arguments:
		pSHA_CTX Pointer to SHA256_CTX_STRUC

		Return Value:
		digestMessage Digest message

		Note:
		None
		========================================================================
		*/
		VOID SHA256_End (
		IN SHA256_CTX_STRUC *pSHA_CTX,
		OUT UINT8 DigestMessage[])
		{
		UINT index;
		UINT64 message_length_bits;

		/* Append bit 1 to end of the message */
		NdisFillMemory(pSHA_CTX->Block + pSHA_CTX->BlockLen, 1, 0x80);

		/* 55 = 64 - 8 - 1: append 1 bit(1 byte) and message length (8 bytes) */
		if (pSHA_CTX->BlockLen > 55)
		SHA256_Hash(pSHA_CTX);
		/* End of if */

		/* Append the length of message in rightmost 64 bits */
		message_length_bits = pSHA_CTX->MessageLen*8;
		message_length_bits = cpu2be64(message_length_bits);
		NdisMoveMemory(&pSHA_CTX->Block[56], &message_length_bits, 8);
		SHA256_Hash(pSHA_CTX);

		/* Return message digest, transform the UINT32 hash value to bytes */
		for (index = 0; index < 8;index++)
		pSHA_CTX->HashValue[index] = cpu2be32(pSHA_CTX->HashValue[index]);
		/* End of for */
		NdisMoveMemory(DigestMessage, pSHA_CTX->HashValue, SHA256_DIGEST_SIZE);
		} /* End of SHA256_End */


		/*
		========================================================================
		Routine Description:
		SHA256 algorithm

		Arguments:
		message Message context
		messageLen The length of message in bytes

		Return Value:
		digestMessage Digest message

		Note:
		None
		========================================================================
		*/
		VOID RT_SHA256 (
		IN const UINT8 Message[],
		IN UINT MessageLen,
		OUT UINT8 DigestMessage[])
		{
		SHA256_CTX_STRUC sha_ctx;

		NdisZeroMemory(&sha_ctx, sizeof(SHA256_CTX_STRUC));
		SHA256_Init(&sha_ctx);
		SHA256_Append(&sha_ctx, Message, MessageLen);
		SHA256_End(&sha_ctx, DigestMessage);
		} /* End of RT_SHA256 */
		#endif /* SHA256_SUPPORT */

		/* End of crypt_sha2.c */

drivers/staging/rt2860/crypt_hmac.h

+0 −11

Original line number	Diff line number	Diff line
		@@ -57,17 +57,6 @@ VOID HMAC_SHA1 (
		IN UINT MACLen);
		#endif /* SHA1_SUPPORT */

		#ifdef SHA256_SUPPORT
		#define HMAC_SHA256_SUPPORT
		VOID HMAC_SHA256 (
		IN const UINT8 Key[],
		IN UINT KeyLen,
		IN const UINT8 Message[],
		IN UINT MessageLen,
		OUT UINT8 MAC[],
		IN UINT MACLen);
		#endif /* SHA256_SUPPORT */

		#ifdef MD5_SUPPORT
		#define HMAC_MD5_SUPPORT
		VOID HMAC_MD5 (

drivers/staging/rt2860/crypt_sha2.h

+0 −28

Original line number	Diff line number	Diff line
		@@ -50,7 +50,6 @@

		/* Algorithm options */
		#define SHA1_SUPPORT
		#define SHA256_SUPPORT

		#ifdef SHA1_SUPPORT
		#define SHA1_BLOCK_SIZE 64 /* 512 bits = 64 bytes */
		@@ -79,31 +78,4 @@ VOID RT_SHA1 (
		OUT UINT8 DigestMessage[]);
		#endif /* SHA1_SUPPORT */

		#ifdef SHA256_SUPPORT
		#define SHA256_BLOCK_SIZE 64 /* 512 bits = 64 bytes */
		#define SHA256_DIGEST_SIZE 32 /* 256 bits = 32 bytes */
		typedef struct _SHA256_CTX_STRUC {
		UINT32 HashValue[8]; /* 8 = (SHA256_DIGEST_SIZE / 32) */
		UINT64 MessageLen; /* total size */
		UINT8 Block[SHA256_BLOCK_SIZE];
		UINT BlockLen;
		} SHA256_CTX_STRUC, *PSHA256_CTX_STRUC;

		VOID SHA256_Init (
		IN SHA256_CTX_STRUC *pSHA_CTX);
		VOID SHA256_Hash (
		IN SHA256_CTX_STRUC *pSHA_CTX);
		VOID SHA256_Append (
		IN SHA256_CTX_STRUC *pSHA_CTX,
		IN const UINT8 Message[],
		IN UINT MessageLen);
		VOID SHA256_End (
		IN SHA256_CTX_STRUC *pSHA_CTX,
		OUT UINT8 DigestMessage[]);
		VOID RT_SHA256 (
		IN const UINT8 Message[],
		IN UINT MessageLen,
		OUT UINT8 DigestMessage[]);
		#endif /* SHA256_SUPPORT */

		#endif /* __CRYPT_SHA2_H__ */