These functions allow you to encrypt or digest strings. The header file Encrypt.h only declares functions, so this chapter only consists of a single section:
Encrypt Functions and Macros
The header file Encrypt.h declares the API that this chapter describes.
Encrypt Functions and Macros
EncDES Function
Purpose
Perform a reversible encryption or decryption of an 8-byte string using an 8-byte key.
Declared In
Encrypt.h Prototype
status_t EncDES ( uint8_t*srcP, uint8_t*keyP, uint8_t*dstP, Booleanencrypt)
Parameters
-
→ srcP - The 8-byte string to be encrypted.
-
→ keyP - The 8-byte key with which to encrypt the string in
srcP. -
← dstP - The 8-byte encrypted result.
-
→ encrypt - Pass
trueto encrypt,falseto decrypt.
Returns
errNone if the operation completed successfully, or one of the error codes listed under "CPM Library Error Codes" otherwise.
EncDigestMD4 Function
Purpose
Digest a string of bytes to produce a 128-bit result using the MD4 algorithm.
Declared In
Encrypt.h Prototype
status_t EncDigestMD4 ( uint8_t*strP, uint16_tstrLen, uint8_tdigestP[16])
Parameters
-
→ strP - The string to be digested.
-
→ strLen - The length of the string passed in
strP. -
← digestP[16] - The resulting 128-bit (16 byte) digest.
Returns
errNone if the operation completed successfully, or one of the error codes listed under "CPM Library Error Codes" otherwise.
EncDigestMD5 Function
Purpose
Digest a string of bytes to produce a 128-bit result using the MD5 algorithm.
Declared In
Encrypt.h Prototype
status_t EncDigestMD5 ( uint8_t*strP, uint16_tstrLen, uint8_tdigestP[16])
Parameters
-
→ strP - The string to be digested.
-
→ strLen - The length of the string passed in
strP. -
← digestP[16] - The resulting 128-bit (16 byte) digest.
Returns
errNone if the operation completed successfully, or one of the error codes listed under "CPM Library Error Codes" otherwise.