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| author | nagendra modadugu <ngm@google.com> | 2016-01-22 11:37:48 -0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-02-08 15:24:29 -0800 |
| commit | 7ac69e594b9a092dfeb76a4969396f7ddde4fbee (patch) | |
| tree | c8c9eb1d45a74fbc9b9892e28a0c75b46818cb2a /chip/g/dcrypto/dcrypto.h | |
| parent | 89424bfbedba6c06f4a4ef9e444a2c4d0575883a (diff) | |
| download | chrome-ec-7ac69e594b9a092dfeb76a4969396f7ddde4fbee.tar.gz | |
CR50: Add initial elliptic curve crypto implementation.
This change adds support for NIST-P256 curve operations.
BRANCH=none
BUG=chrome-os-partner:43025,chrome-os-partner:47524
TEST=new tests under test/tpm2/ pass.
Change-Id: I03a35ff3ab8af3c52282d882937880bfa2bdcd32
Signed-off-by: nagendra modadugu <ngm@google.com>
Reviewed-on: https://chromium-review.googlesource.com/324540
Commit-Ready: Nagendra Modadugu <ngm@google.com>
Tested-by: Nagendra Modadugu <ngm@google.com>
Reviewed-by: Marius Schilder <mschilder@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Diffstat (limited to 'chip/g/dcrypto/dcrypto.h')
| -rw-r--r-- | chip/g/dcrypto/dcrypto.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/chip/g/dcrypto/dcrypto.h b/chip/g/dcrypto/dcrypto.h index 3d8e78ab96..c0422208ae 100644 --- a/chip/g/dcrypto/dcrypto.h +++ b/chip/g/dcrypto/dcrypto.h @@ -119,4 +119,22 @@ int DCRYPTO_rsa_verify(struct RSA *rsa, const uint8_t *digest, const uint32_t sig_len, enum padding_mode padding, enum hashing_mode hashing); +/* + * EC. + */ +int DCRYPTO_p256_valid_point(const p256_int *x, const p256_int *y); +int DCRYPTO_p256_base_point_mul(p256_int *out_x, p256_int *out_y, + const p256_int *n); +int DCRYPTO_p256_points_mul(p256_int *out_x, p256_int *out_y, + const p256_int *n1, const p256_int *n2, + const p256_int *in_x, const p256_int *in_y); +int DCRYPTO_p256_key_from_bytes(p256_int *x, p256_int *y, p256_int *d, + const uint8_t key_bytes[P256_NBYTES]); + +void DCRYPTO_p256_ecdsa_sign(const p256_int *d, const p256_int *digest, + p256_int *r, p256_int *s); +int DCRYPTO_p256_ecdsa_verify(const p256_int *key_x, const p256_int *key_y, + const p256_int *digest, const p256_int *r, + const p256_int *s); + #endif /* ! __EC_CHIP_G_DCRYPTO_DCRYPTO_H */ |