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API Reference

#./fio-stl/154 p384.h

2 public symbols.

#Functions

#fio_ecdsa_p384_verify

c
int fio_ecdsa_p384_verify(const uint8_t *sig, size_t sig_len, const uint8_t *msg_hash, const uint8_t *pubkey, size_t pubkey_len)

Verifies an ECDSA P-384 signature.

Parameters:

  • sig - DER-encoded signature (SEQUENCE { r INTEGER, s INTEGER })
  • sig_len - Length of signature in bytes
  • msg_hash - SHA-384 hash of the message (48 bytes)
  • pubkey - Uncompressed public key (97 bytes: 0x04 || x || y)
  • pubkey_len - Length of public key (must be 97)

Returns:

  • 0 on success (valid signature), -1 on failure (invalid signature)

Symbol type: function

#fio_ecdsa_p384_verify_raw

c
int fio_ecdsa_p384_verify_raw(const uint8_t r[48], const uint8_t s[48], const uint8_t msg_hash[48], const uint8_t pubkey_x[48], const uint8_t pubkey_y[48])

Verifies an ECDSA P-384 signature with raw r,s values.

Parameters:

  • r - The r component of the signature (48 bytes, big-endian)
  • s - The s component of the signature (48 bytes, big-endian)
  • msg_hash - SHA-384 hash of the message (48 bytes)
  • pubkey_x - X coordinate of public key (48 bytes, big-endian)
  • pubkey_y - Y coordinate of public key (48 bytes, big-endian)

Returns:

  • 0 on success (valid signature), -1 on failure (invalid signature)

Symbol type: function