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author | Salvatore Benedetto <salvatore.benedetto@intel.com> | 2016-07-04 18:21:38 +0200 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-07-05 17:05:26 +0200 |
commit | 8be0b84e58a9b07c314f920792926c5c5a53d3da (patch) | |
tree | c75ddebfc0ea68a3cd05bc8bbf2dc2b85bdfb462 /crypto/rsa_helper.c | |
parent | crypto: qat - Use alternative reset methods depending on the specific device (diff) | |
download | linux-8be0b84e58a9b07c314f920792926c5c5a53d3da.tar.xz linux-8be0b84e58a9b07c314f920792926c5c5a53d3da.zip |
crypto: rsa - Store rest of the private key components
When parsing a private key, store all non-optional fields. These
are required for enabling CRT mode for decrypt and verify
Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/rsa_helper.c')
-rw-r--r-- | crypto/rsa_helper.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/crypto/rsa_helper.c b/crypto/rsa_helper.c index 583656af4fe2..4df6451e7543 100644 --- a/crypto/rsa_helper.c +++ b/crypto/rsa_helper.c @@ -78,6 +78,81 @@ int rsa_get_d(void *context, size_t hdrlen, unsigned char tag, return 0; } +int rsa_get_p(void *context, size_t hdrlen, unsigned char tag, + const void *value, size_t vlen) +{ + struct rsa_key *key = context; + + /* invalid key provided */ + if (!value || !vlen || vlen > key->n_sz) + return -EINVAL; + + key->p = value; + key->p_sz = vlen; + + return 0; +} + +int rsa_get_q(void *context, size_t hdrlen, unsigned char tag, + const void *value, size_t vlen) +{ + struct rsa_key *key = context; + + /* invalid key provided */ + if (!value || !vlen || vlen > key->n_sz) + return -EINVAL; + + key->q = value; + key->q_sz = vlen; + + return 0; +} + +int rsa_get_dp(void *context, size_t hdrlen, unsigned char tag, + const void *value, size_t vlen) +{ + struct rsa_key *key = context; + + /* invalid key provided */ + if (!value || !vlen || vlen > key->n_sz) + return -EINVAL; + + key->dp = value; + key->dp_sz = vlen; + + return 0; +} + +int rsa_get_dq(void *context, size_t hdrlen, unsigned char tag, + const void *value, size_t vlen) +{ + struct rsa_key *key = context; + + /* invalid key provided */ + if (!value || !vlen || vlen > key->n_sz) + return -EINVAL; + + key->dq = value; + key->dq_sz = vlen; + + return 0; +} + +int rsa_get_qinv(void *context, size_t hdrlen, unsigned char tag, + const void *value, size_t vlen) +{ + struct rsa_key *key = context; + + /* invalid key provided */ + if (!value || !vlen || vlen > key->n_sz) + return -EINVAL; + + key->qinv = value; + key->qinv_sz = vlen; + + return 0; +} + /** * rsa_parse_pub_key() - decodes the BER encoded buffer and stores in the * provided struct rsa_key, pointers to the raw key as is, |