NAME

LIBRARY

SYNOPSIS

ooppeennssssll [ lliisstt--ssttaannddaarrdd--ccoommmmaannddss | lliisstt--mmeessssaaggee--ddiiggeesstt--ccoommmmaannddss | lliisstt--cciipphheerr--ccoommmmaannddss | lliisstt--cciipphheerr--aallggoorriitthhmmss | lliisstt--mmeessssaaggee--ddiiggeesstt--aallggoorriitthhmmss | lliisstt--ppuubblliicc--kkeeyy--aallggoorriitthhmmss]

ooppeennssssll nnoo--_X_X_X [ _a_r_b_i_t_r_a_r_y _o_p_t_i_o_n_s ]

DESCRIPTION

The ooppeennssssll program is a command line tool for using the various cryptography functions of OpenSSL's ccrryyppttoo library from the shell. It can be used for

 o  Creation and management of private keys, public keys and parameters
 o  Public key cryptographic operations
 o  Creation of X.509 certificates, CSRs and CRLs
 o  Calculation of Message Digests
 o  Encryption and Decryption with Ciphers
 o  SSL/TLS Client and Server Tests
 o  Handling of S/MIME signed or encrypted mail
 o  Time Stamp requests, generation and verification

COMMAND SUMMARY

The pseudo-commands lliisstt--ssttaannddaarrdd--ccoommmmaannddss, lliisstt--mmeessssaaggee--ddiiggeesstt--ccoommmmaannddss, and lliisstt--cciipphheerr--ccoommmmaannddss output a list (one entry per line) of the names of all standard commands, message digest commands, or cipher commands, respectively, that are available in the present ooppeennssssll utility.

The pseudo-commands lliisstt--cciipphheerr--aallggoorriitthhmmss and lliisstt--mmeessssaaggee--ddiiggeesstt--aallggoorriitthhmmss list all cipher and message digest names, one entry per line. Aliases are listed as:

 from => to

The pseudo-command lliisstt--ppuubblliicc--kkeeyy--aallggoorriitthhmmss lists all supported public key algorithms.

The pseudo-command nnoo--_X_X_X tests whether a command of the specified name is available. If no command named _X_X_X exists, it returns 0 (success) and prints nnoo--_X_X_X; otherwise it returns 1 and prints _X_X_X. In both cases, the output goes to ssttddoouutt and nothing is printed to ssttddeerrrr. Additional command line arguments are always ignored. Since for each cipher there is a command of the same name, this provides an easy way for shell scripts to test for the availability of ciphers in the ooppeennssssll program. (nnoo--_X_X_X is not able to detect pseudo-commands such as qquuiitt, lliisstt--_._._.--ccoommmmaannddss, or nnoo--_X_X_X itself.)

SSTTAANNDDAARRDD CCOOMMMMAANNDDSS

aassnn11ppaarrssee Parse an ASN.1 sequence.

ccaa Certificate Authority (CA) Management.

cciipphheerrss Cipher Suite Description Determination.

ccrrll Certificate Revocation List (CRL) Management.

ccrrll22ppkkccss77 CRL to PKCS#7 Conversion.

ddggsstt Message Digest Calculation.

ddhh Diffie-Hellman Parameter Management.

Obsoleted by ddhhppaarraamm.

ddssaa DSA Data Management.

ddssaappaarraamm DSA Parameter Generation and Management. Superseded by

ggeennppkkeeyy and ppkkeeyyppaarraamm

eenncc Encoding with Ciphers.

eerrrrssttrr Error Number to Error String Conversion.

ddhhppaarraamm Generation and Management of Diffie-Hellman Parameters. Superseded by

ggeennppkkeeyy and ppkkeeyyppaarraamm

ggeennddhh Generation of Diffie-Hellman Parameters.

Obsoleted by ddhhppaarraamm.

ggeennddssaa Generation of DSA Private Key from Parameters. Superseded by

ggeennppkkeeyy and ppkkeeyy

ggeennppkkeeyy Generation of Private Key or Parameters.

ggeennrrssaa Generation of RSA Private Key. Superceded by ggeennppkkeeyy.

ooccsspp Online Certificate Status Protocol utility.

ppaasssswwdd Generation of hashed passwords.

ppkkccss1122 PKCS#12 Data Management.

ppkkccss77 PKCS#7 Data Management.

ppkkeeyy Public and private key management.

ppkkeeyyuuttll Public key algorithm cryptographic operation utility.

ppkkeeyyppaarraamm Public key algorithm parameter management.

rraanndd Generate pseudo-random bytes.

rreeqq PKCS#10 X.509 Certificate Signing Request (CSR) Management.

rrssaa RSA key management.

rrssaauuttll RSA utility for signing, verification, encryption, and decryption. Superseded

by ppkkeeyyuuttll

ss__cclliieenntt This implements a generic SSL/TLS client which can establish a transparent

connection to a remote server speaking SSL/TLS. It's intended for testing purposes only and provides only rudimentary interface functionality but internally uses mostly all functionality of the OpenSSL ssssll library.

ss__sseerrvveerr This implements a generic SSL/TLS server which accepts connections from remote

clients speaking SSL/TLS. It's intended for testing purposes only and provides only rudimentary interface functionality but internally uses mostly all functionality of the OpenSSL ssssll library. It provides both an own command line oriented protocol for testing SSL functions and a simple HTTP response facility to emulate an SSL/TLS-aware webserver.

ss__ttiimmee SSL Connection Timer.

sseessss__iidd SSL Session Data Management.

ssmmiimmee S/MIME mail processing.

ssppeeeedd Algorithm Speed Measurement.

ttss Time Stamping Authority tool (client/server)

vveerriiffyy X.509 Certificate Verification.

vveerrssiioonn OpenSSL Version Information.

xx550099 X.509 Certificate Data Management.

MMEESSSSAAGGEE DDIIGGEESSTT CCOOMMMMAANNDDSS

mmdd22 MD2 Digest

mmdd55 MD5 Digest

mmddcc22 MDC2 Digest

rrmmdd116600 RMD-160 Digest

sshhaa SHA Digest

sshhaa11 SHA-1 Digest

sshhaa222244 SHA-224 Digest

sshhaa225566 SHA-256 Digest

sshhaa338844 SHA-384 Digest

sshhaa551122 SHA-512 Digest

EENNCCOODDIINNGG AANNDD CCIIPPHHEERR CCOOMMMMAANNDDSS

bbaassee6644 Base64 Encoding

bbff bbff--ccbbcc bbff--ccffbb bbff--eeccbb bbff--ooffbb Blowfish Cipher

ccaasstt ccaasstt--ccbbcc CAST Cipher

ccaasstt55--ccbbcc ccaasstt55--ccffbb ccaasstt55--eeccbb ccaasstt55--ooffbb CAST5 Cipher

ddeess ddeess--ccbbcc ddeess--ccffbb ddeess--eeccbb ddeess--eeddee ddeess--eeddee--ccbbcc ddeess--eeddee--ccffbb ddeess--eeddee--ooffbb ddeess--ooffbb DES Cipher

ddeess33 ddeessxx ddeess--eeddee33 ddeess--eeddee33--ccbbcc ddeess--eeddee33--ccffbb ddeess--eeddee33--ooffbb Triple-DES Cipher

iiddeeaa iiddeeaa--ccbbcc iiddeeaa--ccffbb iiddeeaa--eeccbb iiddeeaa--ooffbb IDEA Cipher

rrcc22 rrcc22--ccbbcc rrcc22--ccffbb rrcc22--eeccbb rrcc22--ooffbb RC2 Cipher

rrcc44 RC4 Cipher

rrcc55 rrcc55--ccbbcc rrcc55--ccffbb rrcc55--eeccbb rrcc55--ooffbb RC5 Cipher

PASS PHRASE ARGUMENTS

ppaassss::ppaasssswwoorrdd the actual password is ppaasssswwoorrdd. Since the password is visible

to utilities (like 'ps' under Unix) this form should only be used where security is not important.

eennvv::vvaarr obtain the password from the environment variable vvaarr. Since

the environment of other processes is visible on certain platforms (e.g. ps under certain Unix OSes) this option should be used with caution.

ffiillee::ppaatthhnnaammee the first line of ppaatthhnnaammee is the password. If the same ppaatthhnnaammee

argument is supplied to --ppaassssiinn and --ppaassssoouutt arguments then the first line will be used for the input password and the next line for the output password. ppaatthhnnaammee need not refer to a regular file: it could for example refer to a device or named pipe.

ffdd::nnuummbbeerr read the password from the file descriptor nnuummbbeerr. This can be used to

send the data via a pipe for example.

ssttddiinn read the password from standard input.

SEE ALSO

HISTORY