From 6889621fd2317f52fd2c5ef1178128156f39fa94 Mon Sep 17 00:00:00 2001 From: Salvatore Benedetto Date: Mon, 4 Jul 2016 10:49:28 +0100 Subject: [PATCH] crypto: qat - Switch to new rsa_helper functions Drop all asn1 related code and use the new rsa_helper functions rsa_parse_[pub|priv]_key for parsing the key Signed-off-by: Salvatore Benedetto Signed-off-by: Herbert Xu --- drivers/crypto/qat/Kconfig | 2 +- drivers/crypto/qat/qat_common/Makefile | 10 ---- drivers/crypto/qat/qat_common/qat_asym_algs.c | 49 ++++++++----------- .../crypto/qat/qat_common/qat_rsaprivkey.asn1 | 11 ----- .../crypto/qat/qat_common/qat_rsapubkey.asn1 | 4 -- 5 files changed, 21 insertions(+), 55 deletions(-) delete mode 100644 drivers/crypto/qat/qat_common/qat_rsaprivkey.asn1 delete mode 100644 drivers/crypto/qat/qat_common/qat_rsapubkey.asn1 diff --git a/drivers/crypto/qat/Kconfig b/drivers/crypto/qat/Kconfig index 85b44e577684..571d04dda415 100644 --- a/drivers/crypto/qat/Kconfig +++ b/drivers/crypto/qat/Kconfig @@ -5,11 +5,11 @@ config CRYPTO_DEV_QAT select CRYPTO_BLKCIPHER select CRYPTO_AKCIPHER select CRYPTO_HMAC + select CRYPTO_RSA select CRYPTO_SHA1 select CRYPTO_SHA256 select CRYPTO_SHA512 select FW_LOADER - select ASN1 config CRYPTO_DEV_QAT_DH895xCC tristate "Support for Intel(R) DH895xCC" diff --git a/drivers/crypto/qat/qat_common/Makefile b/drivers/crypto/qat/qat_common/Makefile index 6d74b91f2152..92fb6ffdc062 100644 --- a/drivers/crypto/qat/qat_common/Makefile +++ b/drivers/crypto/qat/qat_common/Makefile @@ -1,11 +1,3 @@ -$(obj)/qat_rsapubkey-asn1.o: $(obj)/qat_rsapubkey-asn1.c \ - $(obj)/qat_rsapubkey-asn1.h -$(obj)/qat_rsaprivkey-asn1.o: $(obj)/qat_rsaprivkey-asn1.c \ - $(obj)/qat_rsaprivkey-asn1.h - -clean-files += qat_rsapubkey-asn1.c qat_rsapubkey-asn1.h -clean-files += qat_rsaprivkey-asn1.c qat_rsaprivkey-asn1.h - obj-$(CONFIG_CRYPTO_DEV_QAT) += intel_qat.o intel_qat-objs := adf_cfg.o \ adf_isr.o \ @@ -19,8 +11,6 @@ intel_qat-objs := adf_cfg.o \ adf_hw_arbiter.o \ qat_crypto.o \ qat_algs.o \ - qat_rsapubkey-asn1.o \ - qat_rsaprivkey-asn1.o \ qat_asym_algs.o \ qat_uclo.o \ qat_hal.o diff --git a/drivers/crypto/qat/qat_common/qat_asym_algs.c b/drivers/crypto/qat/qat_common/qat_asym_algs.c index 05f49d4f94b2..04b0ef8cfaa1 100644 --- a/drivers/crypto/qat/qat_common/qat_asym_algs.c +++ b/drivers/crypto/qat/qat_common/qat_asym_algs.c @@ -52,8 +52,6 @@ #include #include #include -#include "qat_rsapubkey-asn1.h" -#include "qat_rsaprivkey-asn1.h" #include "icp_qat_fw_pke.h" #include "adf_accel_devices.h" #include "adf_transport.h" @@ -502,10 +500,8 @@ unmap_src: return ret; } -int qat_rsa_get_n(void *context, size_t hdrlen, unsigned char tag, - const void *value, size_t vlen) +int qat_rsa_set_n(struct qat_rsa_ctx *ctx, const char *value, size_t vlen) { - struct qat_rsa_ctx *ctx = context; struct qat_crypto_instance *inst = ctx->inst; struct device *dev = &GET_DEV(inst->accel_dev); const char *ptr = value; @@ -518,11 +514,6 @@ int qat_rsa_get_n(void *context, size_t hdrlen, unsigned char tag, ctx->key_sz = vlen; ret = -EINVAL; - /* In FIPS mode only allow key size 2K & 3K */ - if (fips_enabled && (ctx->key_sz != 256 && ctx->key_sz != 384)) { - pr_err("QAT: RSA: key size not allowed in FIPS mode\n"); - goto err; - } /* invalid key size provided */ if (!qat_rsa_enc_fn_id(ctx->key_sz)) goto err; @@ -540,10 +531,8 @@ err: return ret; } -int qat_rsa_get_e(void *context, size_t hdrlen, unsigned char tag, - const void *value, size_t vlen) +int qat_rsa_set_e(struct qat_rsa_ctx *ctx, const char *value, size_t vlen) { - struct qat_rsa_ctx *ctx = context; struct qat_crypto_instance *inst = ctx->inst; struct device *dev = &GET_DEV(inst->accel_dev); const char *ptr = value; @@ -559,18 +548,15 @@ int qat_rsa_get_e(void *context, size_t hdrlen, unsigned char tag, } ctx->e = dma_zalloc_coherent(dev, ctx->key_sz, &ctx->dma_e, GFP_KERNEL); - if (!ctx->e) { - ctx->e = NULL; + if (!ctx->e) return -ENOMEM; - } + memcpy(ctx->e + (ctx->key_sz - vlen), ptr, vlen); return 0; } -int qat_rsa_get_d(void *context, size_t hdrlen, unsigned char tag, - const void *value, size_t vlen) +int qat_rsa_set_d(struct qat_rsa_ctx *ctx, const char *value, size_t vlen) { - struct qat_rsa_ctx *ctx = context; struct qat_crypto_instance *inst = ctx->inst; struct device *dev = &GET_DEV(inst->accel_dev); const char *ptr = value; @@ -585,12 +571,6 @@ int qat_rsa_get_d(void *context, size_t hdrlen, unsigned char tag, if (!ctx->key_sz || !vlen || vlen > ctx->key_sz) goto err; - /* In FIPS mode only allow key size 2K & 3K */ - if (fips_enabled && (vlen != 256 && vlen != 384)) { - pr_err("QAT: RSA: key size not allowed in FIPS mode\n"); - goto err; - } - ret = -ENOMEM; ctx->d = dma_zalloc_coherent(dev, ctx->key_sz, &ctx->dma_d, GFP_KERNEL); if (!ctx->d) @@ -608,6 +588,7 @@ static int qat_rsa_setkey(struct crypto_akcipher *tfm, const void *key, { struct qat_rsa_ctx *ctx = akcipher_tfm_ctx(tfm); struct device *dev = &GET_DEV(ctx->inst->accel_dev); + struct rsa_key rsa_key; int ret; /* Free the old key if any */ @@ -625,14 +606,24 @@ static int qat_rsa_setkey(struct crypto_akcipher *tfm, const void *key, ctx->d = NULL; if (private) - ret = asn1_ber_decoder(&qat_rsaprivkey_decoder, ctx, key, - keylen); + ret = rsa_parse_priv_key(&rsa_key, key, keylen); else - ret = asn1_ber_decoder(&qat_rsapubkey_decoder, ctx, key, - keylen); + ret = rsa_parse_pub_key(&rsa_key, key, keylen); if (ret < 0) goto free; + ret = qat_rsa_set_n(ctx, rsa_key.n, rsa_key.n_sz); + if (ret < 0) + goto free; + ret = qat_rsa_set_e(ctx, rsa_key.e, rsa_key.e_sz); + if (ret < 0) + goto free; + if (private) { + ret = qat_rsa_set_d(ctx, rsa_key.d, rsa_key.d_sz); + if (ret < 0) + goto free; + } + if (!ctx->n || !ctx->e) { /* invalid key provided */ ret = -EINVAL; diff --git a/drivers/crypto/qat/qat_common/qat_rsaprivkey.asn1 b/drivers/crypto/qat/qat_common/qat_rsaprivkey.asn1 deleted file mode 100644 index f0066adb79b8..000000000000 --- a/drivers/crypto/qat/qat_common/qat_rsaprivkey.asn1 +++ /dev/null @@ -1,11 +0,0 @@ -RsaPrivKey ::= SEQUENCE { - version INTEGER, - n INTEGER ({ qat_rsa_get_n }), - e INTEGER ({ qat_rsa_get_e }), - d INTEGER ({ qat_rsa_get_d }), - prime1 INTEGER, - prime2 INTEGER, - exponent1 INTEGER, - exponent2 INTEGER, - coefficient INTEGER -} diff --git a/drivers/crypto/qat/qat_common/qat_rsapubkey.asn1 b/drivers/crypto/qat/qat_common/qat_rsapubkey.asn1 deleted file mode 100644 index bd667b31a21a..000000000000 --- a/drivers/crypto/qat/qat_common/qat_rsapubkey.asn1 +++ /dev/null @@ -1,4 +0,0 @@ -RsaPubKey ::= SEQUENCE { - n INTEGER ({ qat_rsa_get_n }), - e INTEGER ({ qat_rsa_get_e }) -}