RSA Security 5 manual Break If status = BEncryptInit

Code Example

if ((status = B_CreateAlgorithmObject (&desAlgorithm)) != 0) break;

initVector.data = iv; initVector.len = 8; feedbackParams.encryptionMethodName = “des”; feedbackParams.encryptionParams = NULL_PTR; feedbackParams.feedbackMethodName = “cbc”; feedbackParams.feedbackParams = initVector; feedbackParams.paddingMethodName = “pad”; feedbackParams.paddingParams = NULL_PTR;

if ((status = B_SetAlgorithmInfo (desAlgorithm, (POINTER)&AI_FeedbackCipher, (POINTER)&feedbackParams)) != 0)

break;

if ((status = B_EncryptInit

(desAlgorithm, desKey, DEMO_ALGORITHM_CHOOSER, NULL_SURRENDER_PTR)) != 0)

break;

if ((status = B_EncryptUpdate

(desAlgorithm, output, outputLen, maxOutputLen, input, inputLen, (B_ALGORITHM_OBJ)NULL_PTR, NULL_SURRENDER_PTR)) != 0)

break;

if ((status = B_EncryptFinal

(desAlgorithm, output + *outputLen, &partOutLen, maxOutputLen - *outputLen, (B_ALGORITHM_OBJ)NULL_PTR, NULL_SURRENDER_PTR)) != 0)

break;

*outputLen += partOutLen; } while (0);

B_KEY_OBJ desKey = (B_KEY_OBJ)NULL_PTR;

B_ALGORITHM_OBJ desAlgorithm = (B_ALGORITHM_OBJ)NULL_PTR; return (status);

}

The main work in EncryptData is done by the functions B_EncryptInit,

B_EncryptUpdate, and B_EncryptFinal. The calling format for these and other functions is shown in Chapter 4, “Details of Crypto-C Functions.” Most Crypto-C procedures return either a zero for success or one of the error types listed in Appendix A.

6 R S A B S A F E C r y p t o - C L i b r a r y R e f e r e n c e M a n u a l