On 2013-06-27, at 11:49, "Dearlove, Christopher (UK)" <chris.dearl...@baesystems.com> wrote:
> RFC 6234 contains, embedded in it, code to implement various functions, > including SHA-2. > > Extracting that code from the RFC is not a clean process. In addition the > code must have existed unembedded before being embedded. > > Is that code available from the IETF or elsewhere? > > (I have tried some approaches to finding such code before posting here, but > none successful.) Turns out that extracting the code from the RFC is only twenty minutes' work. Probably faster just to do it than to talk about it. If you'd like a copy of the files I extracted from the RFC text, I can easily send you a tarball. In general I think that maintaining code repositories is non-trivial, and also has been known (especially with respect to crypto/hash algorithms) to run into export licensing issues. Maintaining an archives of RFCs is already a core competency for the IETF, and (at least in some cases) exporting text is less problematic than exporting code. Joe [krill:~]% mkdir 6234 [krill:~]% cd 6234 [krill:~/6234]% curl -O 'http://tools.ietf.org/rfc/rfc6234.txt' % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 231k 100 231k 0 0 190k 0 0:00:01 0:00:01 --:--:-- 190k [krill:~/6234]% vi rfc6234.txt [krill:~/6234]% ls hkdf.c sha.h stdint-example.h hmac.c sha1.c test-driver.c rfc6234.txt sha224-256.c usha.c sha-private.h sha384-512.c [krill:~/6234]% vi *.h *.c 10 files to edit [krill:~/6234]% date Thu 27 Jun 2013 13:14:53 EDT [krill:~/6234]% [krill:~/6234]% cc -c hmac.c [krill:~/6234]% cc -c sha1.c [krill:~/6234]% cc -c sha224-256.c [krill:~/6234]% cc -c sha384-512.c [krill:~/6234]% cc -c usha.c [krill:~/6234]% cc -c test-driver.c [krill:~/6234]% ls hkdf.c sha.h sha384-512.o hkdf.o sha1.c stdint-example.h hmac.c sha1.o test-driver.c hmac.o sha224-256.c test-driver.o rfc6234.txt sha224-256.o usha.c sha-private.h sha384-512.c usha.o [krill:~/6234]% cc -o test-driver *.o [krill:~/6234]% ./test-driver| egrep '(PASS|FAIL)' SHA1 sha standard test 1: PASSED SHA1 sha standard test 2: PASSED SHA1 sha standard test 3: PASSED SHA1 sha standard test 4: PASSED SHA1 sha standard test 5: PASSED SHA1 sha standard test 6: PASSED SHA1 sha standard test 7: PASSED SHA1 sha standard test 8: PASSED SHA1 sha standard test 9: PASSED SHA1 sha standard test 10: PASSED SHA1 random test 0: PASSED SHA1 random test 1: PASSED SHA1 random test 2: PASSED SHA1 random test 3: PASSED SHA224 sha standard test 1: PASSED SHA224 sha standard test 2: PASSED SHA224 sha standard test 3: PASSED SHA224 sha standard test 4: PASSED SHA224 sha standard test 5: PASSED SHA224 sha standard test 6: PASSED SHA224 sha standard test 7: PASSED SHA224 sha standard test 8: PASSED SHA224 sha standard test 9: PASSED SHA224 sha standard test 10: PASSED SHA224 random test 0: PASSED SHA224 random test 1: PASSED SHA224 random test 2: PASSED SHA224 random test 3: PASSED SHA256 sha standard test 1: PASSED SHA256 sha standard test 2: PASSED SHA256 sha standard test 3: PASSED SHA256 sha standard test 4: PASSED SHA256 sha standard test 5: PASSED SHA256 sha standard test 6: PASSED SHA256 sha standard test 7: PASSED SHA256 sha standard test 8: PASSED SHA256 sha standard test 9: PASSED SHA256 sha standard test 10: PASSED SHA256 random test 0: PASSED SHA256 random test 1: PASSED SHA256 random test 2: PASSED SHA256 random test 3: PASSED SHA384 sha standard test 1: PASSED SHA384 sha standard test 2: PASSED SHA384 sha standard test 3: PASSED SHA384 sha standard test 4: PASSED SHA384 sha standard test 5: PASSED SHA384 sha standard test 6: PASSED SHA384 sha standard test 7: PASSED SHA384 sha standard test 8: PASSED SHA384 sha standard test 9: PASSED SHA384 sha standard test 10: PASSED SHA384 random test 0: PASSED SHA384 random test 1: PASSED SHA384 random test 2: PASSED SHA384 random test 3: PASSED SHA512 sha standard test 1: PASSED SHA512 sha standard test 2: PASSED SHA512 sha standard test 3: PASSED SHA512 sha standard test 4: PASSED SHA512 sha standard test 5: PASSED SHA512 sha standard test 6: PASSED SHA512 sha standard test 7: PASSED SHA512 sha standard test 8: PASSED SHA512 sha standard test 9: PASSED SHA512 sha standard test 10: PASSED SHA512 random test 0: PASSED SHA512 random test 1: PASSED SHA512 random test 2: PASSED SHA512 random test 3: PASSED [krill:~/6234]%
