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SecurityLocalSignRSA

CAPL Functions » Security » SecurityLocalSignRSA Valid for: CANoe DE • CANoe4SW DE

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Function Syntax

SecurityLocalSignRSA(byte privateKey[], dword privateKey Length, byte data[], dword dataLength, byte signature[], dword* signatureLength, dword signatureScheme)

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Description

Generates signature of data with a given private key using asymmetric RSA signature algorithm. Signing scheme can be selected via the parameter.

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Parameters

  • privateKey: The private key to be used for signing
  • privateKeyLength: Length of the private key to be used for signing
  • data: Data to be signed
  • dataLength: Length of the data to be signed
  • signature [OUT]: Generated signature
  • signatureLength [IN/OUT]: Length of generated signature
  • signatureScheme:
    • PKCS1_v1_5_SHA-256 = 1
    • PKCS1_v1_5_SHA-384 = 2
    • PKCS1_v1_5_SHA-512 = 3
    • SSA_PSS_SHA-256 = 4
    • SSA_PSS_SHA-384 = 5
    • SSA_PSS_SHA-512 = 6

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Return Values

  • 1: Success. A value of 1 means that the action was successful.
  • <= 0: Error. A value less than or equal to 0 means error.

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Example

byte privateKey[1794] = {0x30, … , 0x60};
dword privateKeyLength = elcount(privateKey);
byte plainData[30] = {0x42, …, 0x42};
dword plainDataLength = elcount(plainData);
byte signature[1000];
dword signatureLength = elcount(signature);
dword signatureScheme = 1;
long result;

result = SecurityLocalSignRSA(privateKey, privateKeyLength, plainData, plainDataLength, signature, signatureLength, signatureScheme);
SecurityLocalDecryptRsa • SecurityLocalEncryptRsa • SecurityLocalVerifyRsa