md5(1) - calculate a message-digest fingerprint (checksum) for a file {oss}

rmd160(1) - calculate a message-digest fingerprint (checksum) for a file {oss}

sha1(1) - calculate a message-digest fingerprint (checksum) for a file {oss}

cksum(1) - display file checksums and block counts {oss}

Applications and Utilities

MD4Init MD4Update MD4Final MD4End MD4File MD4Data (3) - calculate the RSA Data Security, Inc., ``MD4'' message digest {oss}

MD5Init MD5Update MD5Final MD5End MD5File MD5Data (3) - calculate the RSA Data Security, Inc., ``MD5'' message digest {oss}

SHA1Init SHA1Update SHA1Final SHA1Transform SHA1End SHA1File SHA1Data (3) - calculate the NIST Secure Hash Algorithm {oss}

RMD160Init RMD160Update RMD160Final RMD160Transform RMD160End RMD160File RMD160Data (3) - calculate the ``RIPEMD-160'' message digest {oss}

Libraries and Functions

(The following links to subjects at this site retain your personalized selections.)

Kerberos authentication

Encryption

Random number generators are covered at Integer math - (including rational numbers, Big/Wide integers)

Up to Persistent Data - Gateway topic to externally stored and transmitted data.

see also Process Limits: Identity - Process ownership and Identity

see also Process Limits: File Access - Process Limits on File access (permissions, ownership, modes, et al)