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| author | Jack Grigg <jack@z.cash> | 2017-06-08 16:07:49 +1200 |
|---|---|---|
| committer | Jack Grigg <jack@z.cash> | 2017-07-17 11:57:23 -0500 |
| commit | 1ce9f0a952a3d5d9442ad8251da898d96209c16c (patch) | |
| tree | b04830f99208d2a3db592572204dba96b70fc33b /src | |
| parent | 48abe78e51e9a51fba8b93ff7faa32a14a2aa50c (diff) | |
| download | bitcoin-1ce9f0a952a3d5d9442ad8251da898d96209c16c.tar.xz | |
Ensure that ECDSA constant sizes are correctly-sized
Diffstat (limited to 'src')
| -rw-r--r-- | src/key.cpp | 3 | ||||
| -rw-r--r-- | src/pubkey.h | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/src/key.cpp b/src/key.cpp index 3a93187d76..42301e81a0 100644 --- a/src/key.cpp +++ b/src/key.cpp @@ -92,6 +92,9 @@ static int ec_privkey_import_der(const secp256k1_context* ctx, unsigned char *ou */ static int ec_privkey_export_der(const secp256k1_context *ctx, unsigned char *privkey, size_t *privkeylen, const unsigned char *key32, int compressed) { assert(*privkeylen >= PRIVATE_KEY_SIZE); + static_assert( + PRIVATE_KEY_SIZE >= COMPRESSED_PRIVATE_KEY_SIZE, + "COMPRESSED_PRIVATE_KEY_SIZE is larger than PRIVATE_KEY_SIZE"); secp256k1_pubkey pubkey; size_t pubkeylen = 0; if (!secp256k1_ec_pubkey_create(ctx, &pubkey, key32)) { diff --git a/src/pubkey.h b/src/pubkey.h index 6e25ad7c49..a508c238e4 100644 --- a/src/pubkey.h +++ b/src/pubkey.h @@ -48,6 +48,9 @@ private: * Its length can very cheaply be computed from the first byte. */ unsigned char vch[PUBLIC_KEY_SIZE]; + static_assert( + PUBLIC_KEY_SIZE >= COMPRESSED_PUBLIC_KEY_SIZE, + "COMPRESSED_PUBLIC_KEY_SIZE is larger than PUBLIC_KEY_SIZE"); //! Compute the length of a pubkey with a given first byte. unsigned int static GetLen(unsigned char chHeader) |