Ensure that ECDSA constant sizes are correctly-sized
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2 changed files with 6 additions and 0 deletions
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@ -92,6 +92,9 @@ static int ec_privkey_import_der(const secp256k1_context* ctx, unsigned char *ou
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*/
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static int ec_privkey_export_der(const secp256k1_context *ctx, unsigned char *privkey, size_t *privkeylen, const unsigned char *key32, int compressed) {
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assert(*privkeylen >= PRIVATE_KEY_SIZE);
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static_assert(
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PRIVATE_KEY_SIZE >= COMPRESSED_PRIVATE_KEY_SIZE,
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"COMPRESSED_PRIVATE_KEY_SIZE is larger than PRIVATE_KEY_SIZE");
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secp256k1_pubkey pubkey;
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size_t pubkeylen = 0;
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if (!secp256k1_ec_pubkey_create(ctx, &pubkey, key32)) {
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@ -48,6 +48,9 @@ private:
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* Its length can very cheaply be computed from the first byte.
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*/
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unsigned char vch[PUBLIC_KEY_SIZE];
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static_assert(
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PUBLIC_KEY_SIZE >= COMPRESSED_PUBLIC_KEY_SIZE,
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"COMPRESSED_PUBLIC_KEY_SIZE is larger than PUBLIC_KEY_SIZE");
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//! Compute the length of a pubkey with a given first byte.
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unsigned int static GetLen(unsigned char chHeader)
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