3 @cindex Hashing, cryptographic
5 The @code{sb-md5} module implements the RFC1321 MD5 Message Digest
6 Algorithm. [FIXME cite]
8 @include fun-sb-md5-md5sum-file.texinfo
10 @include fun-sb-md5-md5sum-sequence.texinfo
12 @include fun-sb-md5-md5sum-stream.texinfo
16 The implementation for CMUCL was largely done by Pierre Mai, with help
17 from members of the @code{cmucl-help} mailing list. Since CMUCL and
18 SBCL are similar in many respects, it was not too difficult to extend
19 the low-level implementation optimizations for CMUCL to SBCL.
20 Following this, SBCL's compiler was extended to implement efficient
21 compilation of modular arithmetic (@pxref{Modular arithmetic}), which
22 enabled the implementation to be expressed in portable arithmetical
23 terms, apart from the use of @code{rotate-byte} for bitwise rotation.