Steven Reddie wrote:
If you're trying to extract an implementation of SHA-256 by starting with
sha256t.c you're on the wrong track. That file is for testing sha256.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Allen Rintoul
Sent: Monday, 22 August 2005 10:07 PM
To: openssl-users
Subject: Isolating SHA Algorithm from openssl
I wanted to isolate the code pretaining to sha256, so i started with
sha256t.c. But there are too many dependencies which i thought was out of my
tag search isolation. then i did an nm on sha256t, It used
ASN1_,BN_,BIO_,CRYPTO_,ENGINE_, EVP_,OBJ_,OPENSSL_,RAND_,RSA_,X509_
functions. How can i reduce the depencdecy can i tailor it in such a way
that i can get the sha256 code out. so that i can use it independently.
I could succesfully pulling out des, blowfish and aes. sice they were pretty
straigth forward.
i had the same problem in pulling out ECC ( but i went ahead with all the
dependencies ).
can some one tell me the pre-requisits that i should have before attempting
such a venture of tailoring openssl.
thx a lot for any help
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______________________________________________________________________
OpenSSL Project http://www.openssl.org
User Support Mailing List openssl-users@openssl.org
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This is my first try at openssl so i needed a starting point, so i
choose the test code, so that i would get a basic idea about the
sequence of function calls involved. And i need to produce a independent
executable that could test it too. hence the file sha256t.c ; One more
Q: is the sha implementation based on any rfc or is there any document
which would give me a functional overview of the implementation; or any
information on which the implementation is based on.
Thank a lot for any help.
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