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 <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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6dd7a82cc5
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6889621fd2
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@ -5,11 +5,11 @@ config CRYPTO_DEV_QAT
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select CRYPTO_BLKCIPHER
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select CRYPTO_AKCIPHER
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select CRYPTO_HMAC
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select CRYPTO_RSA
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select CRYPTO_SHA1
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select CRYPTO_SHA256
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select CRYPTO_SHA512
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select FW_LOADER
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select ASN1
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config CRYPTO_DEV_QAT_DH895xCC
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tristate "Support for Intel(R) DH895xCC"
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@ -1,11 +1,3 @@
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$(obj)/qat_rsapubkey-asn1.o: $(obj)/qat_rsapubkey-asn1.c \
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$(obj)/qat_rsapubkey-asn1.h
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$(obj)/qat_rsaprivkey-asn1.o: $(obj)/qat_rsaprivkey-asn1.c \
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$(obj)/qat_rsaprivkey-asn1.h
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clean-files += qat_rsapubkey-asn1.c qat_rsapubkey-asn1.h
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clean-files += qat_rsaprivkey-asn1.c qat_rsaprivkey-asn1.h
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obj-$(CONFIG_CRYPTO_DEV_QAT) += intel_qat.o
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intel_qat-objs := adf_cfg.o \
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adf_isr.o \
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@ -19,8 +11,6 @@ intel_qat-objs := adf_cfg.o \
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adf_hw_arbiter.o \
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qat_crypto.o \
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qat_algs.o \
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qat_rsapubkey-asn1.o \
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qat_rsaprivkey-asn1.o \
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qat_asym_algs.o \
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qat_uclo.o \
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qat_hal.o
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@ -52,8 +52,6 @@
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#include <linux/dma-mapping.h>
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#include <linux/fips.h>
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#include <crypto/scatterwalk.h>
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#include "qat_rsapubkey-asn1.h"
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#include "qat_rsaprivkey-asn1.h"
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#include "icp_qat_fw_pke.h"
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#include "adf_accel_devices.h"
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#include "adf_transport.h"
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@ -502,10 +500,8 @@ unmap_src:
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return ret;
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}
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int qat_rsa_get_n(void *context, size_t hdrlen, unsigned char tag,
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const void *value, size_t vlen)
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int qat_rsa_set_n(struct qat_rsa_ctx *ctx, const char *value, size_t vlen)
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{
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struct qat_rsa_ctx *ctx = context;
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struct qat_crypto_instance *inst = ctx->inst;
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struct device *dev = &GET_DEV(inst->accel_dev);
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const char *ptr = value;
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@ -518,11 +514,6 @@ int qat_rsa_get_n(void *context, size_t hdrlen, unsigned char tag,
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ctx->key_sz = vlen;
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ret = -EINVAL;
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/* In FIPS mode only allow key size 2K & 3K */
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if (fips_enabled && (ctx->key_sz != 256 && ctx->key_sz != 384)) {
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pr_err("QAT: RSA: key size not allowed in FIPS mode\n");
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goto err;
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}
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/* invalid key size provided */
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if (!qat_rsa_enc_fn_id(ctx->key_sz))
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goto err;
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@ -540,10 +531,8 @@ err:
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return ret;
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}
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int qat_rsa_get_e(void *context, size_t hdrlen, unsigned char tag,
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const void *value, size_t vlen)
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int qat_rsa_set_e(struct qat_rsa_ctx *ctx, const char *value, size_t vlen)
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{
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struct qat_rsa_ctx *ctx = context;
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struct qat_crypto_instance *inst = ctx->inst;
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struct device *dev = &GET_DEV(inst->accel_dev);
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const char *ptr = value;
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@ -559,18 +548,15 @@ int qat_rsa_get_e(void *context, size_t hdrlen, unsigned char tag,
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}
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ctx->e = dma_zalloc_coherent(dev, ctx->key_sz, &ctx->dma_e, GFP_KERNEL);
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if (!ctx->e) {
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ctx->e = NULL;
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if (!ctx->e)
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return -ENOMEM;
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}
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memcpy(ctx->e + (ctx->key_sz - vlen), ptr, vlen);
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return 0;
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}
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int qat_rsa_get_d(void *context, size_t hdrlen, unsigned char tag,
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const void *value, size_t vlen)
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int qat_rsa_set_d(struct qat_rsa_ctx *ctx, const char *value, size_t vlen)
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{
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struct qat_rsa_ctx *ctx = context;
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struct qat_crypto_instance *inst = ctx->inst;
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struct device *dev = &GET_DEV(inst->accel_dev);
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const char *ptr = value;
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@ -585,12 +571,6 @@ int qat_rsa_get_d(void *context, size_t hdrlen, unsigned char tag,
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if (!ctx->key_sz || !vlen || vlen > ctx->key_sz)
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goto err;
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/* In FIPS mode only allow key size 2K & 3K */
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if (fips_enabled && (vlen != 256 && vlen != 384)) {
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pr_err("QAT: RSA: key size not allowed in FIPS mode\n");
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goto err;
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}
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ret = -ENOMEM;
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ctx->d = dma_zalloc_coherent(dev, ctx->key_sz, &ctx->dma_d, GFP_KERNEL);
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if (!ctx->d)
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@ -608,6 +588,7 @@ static int qat_rsa_setkey(struct crypto_akcipher *tfm, const void *key,
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{
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struct qat_rsa_ctx *ctx = akcipher_tfm_ctx(tfm);
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struct device *dev = &GET_DEV(ctx->inst->accel_dev);
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struct rsa_key rsa_key;
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int ret;
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/* Free the old key if any */
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@ -625,14 +606,24 @@ static int qat_rsa_setkey(struct crypto_akcipher *tfm, const void *key,
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ctx->d = NULL;
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if (private)
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ret = asn1_ber_decoder(&qat_rsaprivkey_decoder, ctx, key,
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keylen);
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ret = rsa_parse_priv_key(&rsa_key, key, keylen);
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else
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ret = asn1_ber_decoder(&qat_rsapubkey_decoder, ctx, key,
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keylen);
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ret = rsa_parse_pub_key(&rsa_key, key, keylen);
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if (ret < 0)
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goto free;
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ret = qat_rsa_set_n(ctx, rsa_key.n, rsa_key.n_sz);
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if (ret < 0)
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goto free;
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ret = qat_rsa_set_e(ctx, rsa_key.e, rsa_key.e_sz);
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if (ret < 0)
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goto free;
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if (private) {
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ret = qat_rsa_set_d(ctx, rsa_key.d, rsa_key.d_sz);
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if (ret < 0)
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goto free;
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}
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if (!ctx->n || !ctx->e) {
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/* invalid key provided */
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ret = -EINVAL;
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@ -1,11 +0,0 @@
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RsaPrivKey ::= SEQUENCE {
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version INTEGER,
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n INTEGER ({ qat_rsa_get_n }),
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e INTEGER ({ qat_rsa_get_e }),
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d INTEGER ({ qat_rsa_get_d }),
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prime1 INTEGER,
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prime2 INTEGER,
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exponent1 INTEGER,
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exponent2 INTEGER,
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coefficient INTEGER
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}
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@ -1,4 +0,0 @@
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RsaPubKey ::= SEQUENCE {
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n INTEGER ({ qat_rsa_get_n }),
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e INTEGER ({ qat_rsa_get_e })
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}
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