SHA1 hashing in Delphi XE
- by Leonardo Herrera
Hello,
I'm in the process of implementing XML digital signatures. I'm starting with little steps, so right now I want to solve the problem of SHA-1 hashing.
There are lots of questions about this in SO:
Digitially Sign Key with Lockbox
Encryption library for Delphi
Convert this php digital signing to Delphi
Delphi: is there a version of LockBox for Delphi-XE
Delphi 2010 Cryptography libraries
...and probably more. However, I'm using Delphi XE. So far, I've tried LockBox 2 (both the Songbeamer and Sourceforge versions), Lock Box 3, DCPCrypto2 and some others (Hashes is an easy to use unit which uses Windows crypto functions)
I prepared a small test rig that gives me the following:
LockBox2
FAILED: 1 ('abc')
Got: '9f04f41a848514162050e3d68c1a7abb441dc2b5'
Expected: 'a9993e364706816aba3e25717850c26c9cd0d89d'
FAILED: 2 ('abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq')
Got: '51d7d8769ac72c409c5b0e3f69c60adc9a039014'
Expected: '84983e441c3bd26ebaae4aa1f95129e5e54670f1'
LockBox3
FAILED: 1 ('abc')
Got: '9f04f41a848514162050e3d68c1a7abb441dc2b5'
Expected: 'a9993e364706816aba3e25717850c26c9cd0d89d'
FAILED: 2 ('abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq')
Got: '51d7d8769ac72c409c5b0e3f69c60adc9a039014'
Expected: '84983e441c3bd26ebaae4aa1f95129e5e54670f1'
DCPCrypto2
FAILED: 1 ('abc')
Got: '9f04f41a848514162050e3d68c1a7abb441dc2b5'
Expected: 'a9993e364706816aba3e25717850c26c9cd0d89d'
FAILED: 2 ('abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq')
Got: '51d7d8769ac72c409c5b0e3f69c60adc9a039014'
Expected: '84983e441c3bd26ebaae4aa1f95129e5e54670f1'
Hashes
Test 1 passes
Test 2 passes
Have you succeeded in compile the mentioned libraries under Delphi XE and make them give the appropriate values? I'm particularly interested in DCPCrypt2 SelfTest procedure.
Edit: I've added this answer with the fixed source code. Thank you all for your help, it is most appreciated.
