diff options
| -rw-r--r-- | crypto/rsa_helper.c | 75 | ||||
| -rw-r--r-- | crypto/rsaprivkey.asn1 | 10 | ||||
| -rw-r--r-- | include/crypto/internal/rsa.h | 20 |
3 files changed, 100 insertions, 5 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, diff --git a/crypto/rsaprivkey.asn1 b/crypto/rsaprivkey.asn1 index 731aea5edb0c..4ce06758e8af 100644 --- a/crypto/rsaprivkey.asn1 +++ b/crypto/rsaprivkey.asn1 @@ -3,9 +3,9 @@ RsaPrivKey ::= SEQUENCE { n INTEGER ({ rsa_get_n }), e INTEGER ({ rsa_get_e }), d INTEGER ({ rsa_get_d }), - prime1 INTEGER, - prime2 INTEGER, - exponent1 INTEGER, - exponent2 INTEGER, - coefficient INTEGER + prime1 INTEGER ({ rsa_get_p }), + prime2 INTEGER ({ rsa_get_q }), + exponent1 INTEGER ({ rsa_get_dp }), + exponent2 INTEGER ({ rsa_get_dq }), + coefficient INTEGER ({ rsa_get_qinv }) } diff --git a/include/crypto/internal/rsa.h b/include/crypto/internal/rsa.h index d6c042a2ee52..9e8f1590de98 100644 --- a/include/crypto/internal/rsa.h +++ b/include/crypto/internal/rsa.h @@ -19,17 +19,37 @@ * @n : RSA modulus raw byte stream * @e : RSA public exponent raw byte stream * @d : RSA private exponent raw byte stream + * @p : RSA prime factor p of n raw byte stream + * @q : RSA prime factor q of n raw byte stream + * @dp : RSA exponent d mod (p - 1) raw byte stream + * @dq : RSA exponent d mod (q - 1) raw byte stream + * @qinv : RSA CRT coefficient q^(-1) mod p raw byte stream * @n_sz : length in bytes of RSA modulus n * @e_sz : length in bytes of RSA public exponent * @d_sz : length in bytes of RSA private exponent + * @p_sz : length in bytes of p field + * @q_sz : length in bytes of q field + * @dp_sz : length in bytes of dp field + * @dq_sz : length in bytes of dq field + * @qinv_sz : length in bytes of qinv field */ struct rsa_key { const u8 *n; const u8 *e; const u8 *d; + const u8 *p; + const u8 *q; + const u8 *dp; + const u8 *dq; + const u8 *qinv; size_t n_sz; size_t e_sz; size_t d_sz; + size_t p_sz; + size_t q_sz; + size_t dp_sz; + size_t dq_sz; + size_t qinv_sz; }; int rsa_parse_pub_key(struct rsa_key *rsa_key, const void *key, |