From 6391723293bb55f05b43973bbbc7a06822b50555 Mon Sep 17 00:00:00 2001 From: Tom Lendacky Date: Wed, 30 Jul 2014 15:41:32 -0500 Subject: crypto: ccp - Do not sign extend input data to CCP The CCP hardware interprets all numbers as unsigned numbers, therefore sign extending input data is not valid. Modify the function calls for RSA and ECC to not perform sign extending. This patch is based on the cryptodev-2.6 kernel tree. Signed-off-by: Tom Lendacky Signed-off-by: Herbert Xu --- drivers/crypto/ccp/ccp-ops.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) (limited to 'drivers/crypto/ccp') diff --git a/drivers/crypto/ccp/ccp-ops.c b/drivers/crypto/ccp/ccp-ops.c index 9ae006d69df4..8729364261d7 100644 --- a/drivers/crypto/ccp/ccp-ops.c +++ b/drivers/crypto/ccp/ccp-ops.c @@ -1606,7 +1606,7 @@ static int ccp_run_rsa_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd) goto e_ksb; ccp_reverse_set_dm_area(&exp, rsa->exp, rsa->exp_len, CCP_KSB_BYTES, - true); + false); ret = ccp_copy_to_ksb(cmd_q, &exp, op.jobid, op.ksb_key, CCP_PASSTHRU_BYTESWAP_NOOP); if (ret) { @@ -1623,10 +1623,10 @@ static int ccp_run_rsa_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd) goto e_exp; ccp_reverse_set_dm_area(&src, rsa->mod, rsa->mod_len, CCP_KSB_BYTES, - true); + false); src.address += o_len; /* Adjust the address for the copy operation */ ccp_reverse_set_dm_area(&src, rsa->src, rsa->src_len, CCP_KSB_BYTES, - true); + false); src.address -= o_len; /* Reset the address to original value */ /* Prepare the output area for the operation */ @@ -1841,20 +1841,20 @@ static int ccp_run_ecc_mm_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd) /* Copy the ECC modulus */ ccp_reverse_set_dm_area(&src, ecc->mod, ecc->mod_len, - CCP_ECC_OPERAND_SIZE, true); + CCP_ECC_OPERAND_SIZE, false); src.address += CCP_ECC_OPERAND_SIZE; /* Copy the first operand */ ccp_reverse_set_dm_area(&src, ecc->u.mm.operand_1, ecc->u.mm.operand_1_len, - CCP_ECC_OPERAND_SIZE, true); + CCP_ECC_OPERAND_SIZE, false); src.address += CCP_ECC_OPERAND_SIZE; if (ecc->function != CCP_ECC_FUNCTION_MINV_384BIT) { /* Copy the second operand */ ccp_reverse_set_dm_area(&src, ecc->u.mm.operand_2, ecc->u.mm.operand_2_len, - CCP_ECC_OPERAND_SIZE, true); + CCP_ECC_OPERAND_SIZE, false); src.address += CCP_ECC_OPERAND_SIZE; } @@ -1960,17 +1960,17 @@ static int ccp_run_ecc_pm_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd) /* Copy the ECC modulus */ ccp_reverse_set_dm_area(&src, ecc->mod, ecc->mod_len, - CCP_ECC_OPERAND_SIZE, true); + CCP_ECC_OPERAND_SIZE, false); src.address += CCP_ECC_OPERAND_SIZE; /* Copy the first point X and Y coordinate */ ccp_reverse_set_dm_area(&src, ecc->u.pm.point_1.x, ecc->u.pm.point_1.x_len, - CCP_ECC_OPERAND_SIZE, true); + CCP_ECC_OPERAND_SIZE, false); src.address += CCP_ECC_OPERAND_SIZE; ccp_reverse_set_dm_area(&src, ecc->u.pm.point_1.y, ecc->u.pm.point_1.y_len, - CCP_ECC_OPERAND_SIZE, true); + CCP_ECC_OPERAND_SIZE, false); src.address += CCP_ECC_OPERAND_SIZE; /* Set the first point Z coordianate to 1 */ @@ -1981,11 +1981,11 @@ static int ccp_run_ecc_pm_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd) /* Copy the second point X and Y coordinate */ ccp_reverse_set_dm_area(&src, ecc->u.pm.point_2.x, ecc->u.pm.point_2.x_len, - CCP_ECC_OPERAND_SIZE, true); + CCP_ECC_OPERAND_SIZE, false); src.address += CCP_ECC_OPERAND_SIZE; ccp_reverse_set_dm_area(&src, ecc->u.pm.point_2.y, ecc->u.pm.point_2.y_len, - CCP_ECC_OPERAND_SIZE, true); + CCP_ECC_OPERAND_SIZE, false); src.address += CCP_ECC_OPERAND_SIZE; /* Set the second point Z coordianate to 1 */ @@ -1995,14 +1995,14 @@ static int ccp_run_ecc_pm_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd) /* Copy the Domain "a" parameter */ ccp_reverse_set_dm_area(&src, ecc->u.pm.domain_a, ecc->u.pm.domain_a_len, - CCP_ECC_OPERAND_SIZE, true); + CCP_ECC_OPERAND_SIZE, false); src.address += CCP_ECC_OPERAND_SIZE; if (ecc->function == CCP_ECC_FUNCTION_PMUL_384BIT) { /* Copy the scalar value */ ccp_reverse_set_dm_area(&src, ecc->u.pm.scalar, ecc->u.pm.scalar_len, - CCP_ECC_OPERAND_SIZE, true); + CCP_ECC_OPERAND_SIZE, false); src.address += CCP_ECC_OPERAND_SIZE; } } -- cgit v1.2.3