diff options
| author | David Benjamin <davidben@chromium.org> | 2015-12-31 05:39:34 +0300 |
|---|---|---|
| committer | Adam Langley <agl@google.com> | 2016-02-02 22:04:33 +0300 |
| commit | 6014ea624831b656fabdc2600c7b0d891a5ae8cc (patch) | |
| tree | 1ff19f321fb3d67f15518467cc54912d421b6859 /crypto/ec | |
| parent | dd31c4eba2eeb370ab4305ab4cb8ecb48065d42c (diff) | |
Add EC_POINT_point2cbb.
This slightly simplifies the SSL_ECDH code and will be useful later on
in reimplementing the key parsing logic.
Change-Id: Ie41ea5fd3a9a734b3879b715fbf57bd991e23799
Reviewed-on: https://boringssl-review.googlesource.com/6858
Reviewed-by: Adam Langley <agl@google.com>
Diffstat (limited to 'crypto/ec')
| -rw-r--r-- | crypto/ec/oct.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/crypto/ec/oct.c b/crypto/ec/oct.c index e39337dd..9e18535a 100644 --- a/crypto/ec/oct.c +++ b/crypto/ec/oct.c @@ -68,6 +68,7 @@ #include <openssl/ec.h> #include <openssl/bn.h> +#include <openssl/bytestring.h> #include <openssl/err.h> #include "internal.h" @@ -268,6 +269,17 @@ size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *point, return ec_GFp_simple_point2oct(group, point, form, buf, len, ctx); } +int EC_POINT_point2cbb(CBB *out, const EC_GROUP *group, const EC_POINT *point, + point_conversion_form_t form, BN_CTX *ctx) { + size_t len = EC_POINT_point2oct(group, point, form, NULL, 0, ctx); + if (len == 0) { + return 0; + } + uint8_t *p; + return CBB_add_space(out, &p, len) && + EC_POINT_point2oct(group, point, form, p, len, ctx) == len; +} + int ec_GFp_simple_set_compressed_coordinates(const EC_GROUP *group, EC_POINT *point, const BIGNUM *x_, int y_bit, BN_CTX *ctx) { |