openssl_get_md_methods(3) [php man page]

OPENSSL_GET_MD_METHODS(3)						 1						 OPENSSL_GET_MD_METHODS(3)

openssl_get_md_methods - Gets available digest methods

SYNOPSIS

       array openssl_get_md_methods ([bool  $aliases = false])

DESCRIPTION

	Gets a list of available digest methods.

PARAMETERS

	      o $aliases
		- Set to TRUE if digest aliases should be included within the returned array.

RETURN VALUES

	An array of available digest methods.

EXAMPLES

       Example #1

	      openssl_get_md_methods(3) example

	       Shows how the available digests might look, and also which aliases might be available.

	      <?php
	      $digests		   = openssl_get_md_methods();
	      $digests_and_aliases = openssl_get_md_methods(true);
	      $digest_aliases	   = array_diff($digests_and_aliases, $digests);

	      print_r($digests);

	      print_r($digest_aliases);

	      ?>

	      The above example will output something similar to:

	      Array
	      (
		  [0] => DSA
		  [1] => DSA-SHA
		  [2] => MD2
		  [3] => MD4
		  [4] => MD5
		  [5] => RIPEMD160
		  [6] => SHA
		  [7] => SHA1
		  [8] => SHA224
		  [9] => SHA256
		  [10] => SHA384
		  [11] => SHA512
		  [12] => dsaEncryption
		  [13] => dsaWithSHA
		  [14] => ecdsa-with-SHA1
		  [15] => md2
		  [16] => md4
		  [17] => md5
		  [18] => ripemd160
		  [19] => sha
		  [20] => sha1
		  [21] => sha224
		  [22] => sha256
		  [23] => sha384
		  [24] => sha512
	      )
	      Array
	      (
		  [2] => DSA-SHA1
		  [3] => DSA-SHA1-old
		  [4] => DSS1
		  [9] => RSA-MD2
		  [10] => RSA-MD4
		  [11] => RSA-MD5
		  [12] => RSA-RIPEMD160
		  [13] => RSA-SHA
		  [14] => RSA-SHA1
		  [15] => RSA-SHA1-2
		  [16] => RSA-SHA224
		  [17] => RSA-SHA256
		  [18] => RSA-SHA384
		  [19] => RSA-SHA512
		  [28] => dsaWithSHA1
		  [29] => dss1
		  [32] => md2WithRSAEncryption
		  [34] => md4WithRSAEncryption
		  [36] => md5WithRSAEncryption
		  [37] => ripemd
		  [39] => ripemd160WithRSA
		  [40] => rmd160
		  [43] => sha1WithRSAEncryption
		  [45] => sha224WithRSAEncryption
		  [47] => sha256WithRSAEncryption
		  [49] => sha384WithRSAEncryption
		  [51] => sha512WithRSAEncryption
		  [52] => shaWithRSAEncryption
		  [53] => ssl2-md5
		  [54] => ssl3-md5
		  [55] => ssl3-sha1
	      )

SEE ALSO

       openssl_digest(3), openssl_get_cipher_methods(3).

PHP Documentation Group 												 OPENSSL_GET_MD_METHODS(3)

DGST(1) 							      OpenSSL								   DGST(1)

NAME

       dgst, md5, md4, md2, sha1, sha, mdc2, ripemd160 - message digests

SYNOPSIS

       openssl dgst [-md5|-md4|-md2|-sha1|-sha|-mdc2|-ripemd160|-dss1] [-c] [-d] [-hex] [-binary] [-out filename] [-sign filename] [-verify file-
       name] [-prverify filename] [-signature filename] [file...]

       [md5|md4|md2|sha1|sha|mdc2|ripemd160] [-c] [-d] [file...]

DESCRIPTION

       The digest functions output the message digest of a supplied file or files in hexadecimal form. They can also be used for digital signing
       and verification.

OPTIONS

       -c  print out the digest in two digit groups separated by colons, only relevant if hex format output is used.

       -d  print out BIO debugging information.

       -hex
	   digest is to be output as a hex dump. This is the default case for a "normal" digest as opposed to a digital signature.

       -binary
	   output the digest or signature in binary form.

       -out filename
	   filename to output to, or standard output by default.

       -sign filename
	   digitally sign the digest using the private key in "filename".

       -verify filename
	   verify the signature using the the public key in "filename".  The output is either "Verification OK" or "Verification Failure".

       -prverify filename
	   verify the signature using the  the private key in "filename".

       -signature filename
	   the actual signature to verify.

       -rand file(s)
	   a file or files containing random data used to seed the random number generator, or an EGD socket (see RAND_egd(3)).  Multiple files
	   can be specified separated by a OS-dependent character.  The separator is ; for MS-Windows, , for OpenVMS, and : for all others.

       file...
	   file or files to digest. If no files are specified then standard input is used.

NOTES

       The digest of choice for all new applications is SHA1. Other digests are however still widely used.

       If you wish to sign or verify data using the DSA algorithm then the dss1 digest must be used.

       A source of random numbers is required for certain signing algorithms, in particular DSA.

       The signing and verify options should only be used if a single file is being signed or verified.

0.9.7a								    2000-09-04								   DGST(1)