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README
FIPSCHECK project ================= This package contains library (libfipscheck) and helper binaries which implement the integrity check of libraries and binaries as required by FIPS-140-2 validated modules. The integrity check is only one of many requirements needed for validation of a software cryptographic module. Dependencies ============ The package depends on the OpenSSL library for its operation. Commands ======== fipshmac [-d <path-to-destination-dir>] [-s <hmac-suffix>] <filenames-to-be-checksummed> This command will create a checksum file in the same directory as the file which is being checksummed. It will prepend '.' and append <hmac-suffix> to the original file name. If the suffix is not specified '.hmac' is used. * return values (exit codes): 0 - OK 2 - Missing filename 3 - Cannot open the checksum file 4 - Cannot read the file to be checksummed, or the checksum computation failed 5 - Memory allocation error 6,7 - Cannot write to the checksum file If invoked correctly the fipshmac command will not print anything to the standard output or error. Otherwise it will print an error message to stderr. If destination directory is specified with -d the resulting files will be put into it and '.' will not be prepended to the file names. fipscheck [-s <hmac-suffix>] <filenames-to-be-checksummed> This command will verify a checksum of a file. The file containing the checksum value is first looked up in the /usr/lib{64,}/fipscheck directory and if not found there in the same directory as the file which is being checksummed. The checksum file must have '.' prepended and <hmac-suffix> appended to the original file name. The '.' must not be prepended to the file names in the /usr/lib{64,}/fipscheck directory. If the suffix is not specified '.hmac' is used. * return values (exit codes): 0 - OK 1 - Checksum mismatch 2 - Missing filename 3 - Cannot open the checksum file 4 - Cannot read the file to be checksummed, or the checksum computation failed 5 - Memory allocation error 10 and higher - Failure during self-checking the libfipscheck.so shared library 20 and higher - Failure during self-checking the fipscheck binary If invoked correctly the fipscheck command will not print anything to the standard output or error. If you set an environment variable FIPSCHECK_DEBUG to value "syslog", it will send eventual error messages to the syslog. If you set it to value "error", it will send them to the stderr. Library API =========== See man 3 fipscheck.h manual page for description of the fipscheck library API. Format of the checksum file =========================== The file contains HMAC-SHA256 encoded in hexadecimal notation with lowercase letters with one EOL character appended.
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