Description
Checks the digital signature of data using the ECC160 cryptographic algorithm.
First, the function automatically calculates the HASH from the data being checked using the SHA-256 algorithm, and then the signature of the resulting HASH sum is checked.
Syntax
function GrdVerifyDigest( publicKeySize: grd_uint32; publicKey: Pointer; messageSize: grd_uint32; data: Pointer; digestSize: grd_uint32; digest: Pointer): Integer; stdcall;
Parameters
publicKeySize | The size (in bytes) of the public key. Valid value: 40 bytes |
publicKey | Pointer to a buffer with a public key. Each feature has its own public key. It is specified in the Guardant Station interface, "Features" section on the page of a specific feature |
messageSize | Size (in bytes) of the buffer with data which signature needs to be verified. Valid value: 20 bytes |
data | Pointer to a buffer containing data which signature needs to be verified |
digestSize | The size (in bytes) of the digital signature buffer. Valid value: 40 bytes |
digest | Pointer to the buffer of the digital signature being verified |
