Gambas Documentation
Application Repository
Code Snippets
Compilation & Installation from source code
Components
gb
gb.args
gb.cairo
gb.chart
gb.clipper
gb.clipper2
gb.complex
gb.compress
gb.crypt
gb.data
gb.db
gb.db.form
gb.db.mysql
gb.db.odbc
gb.db.postgresql
gb.db.sqlite2
gb.db.sqlite3
gb.db2
gb.db2.form
gb.dbus
gb.dbus.trayicon
gb.debug
gb.desktop
gb.desktop.gnome.keyring
gb.desktop.x11
gb.eval
gb.eval.highlight
gb.form
gb.form.dialog
gb.form.editor
gb.form.htmlview
gb.form.mdi
gb.form.print
gb.form.stock
gb.form.terminal
gb.gmp
gb.gsl
gb.gtk
gb.gtk.opengl
gb.gtk3
gb.gtk3.opengl
gb.gtk3.webview
gb.gui
gb.gui.opengl
gb.gui.qt
gb.gui.qt.ext
gb.gui.qt.opengl
gb.gui.qt.webkit
gb.gui.trayicon
gb.gui.webview
gb.hash
gb.highlight
gb.image
gb.image.effect
gb.image.imlib
gb.image.io
gb.inotify
gb.jit
gb.libxml
gb.logging
gb.map
gb.markdown
gb.media
gb.media.form
gb.memcached
gb.mime
gb.mongodb
gb.mysql
gb.ncurses
gb.net
gb.net.curl
gb.net.pop3
gb.net.smtp
gb.openal
gb.opengl
gb.opengl.glsl
gb.opengl.glu
gb.opengl.sge
gb.openssl
.Digest.Method
Cipher
CipherText
Digest
_get
IsSupported
List
HMac
OpenSSL
gb.option
gb.pcre
gb.pdf
gb.poppler
gb.qt4
gb.qt4.ext
gb.qt4.opengl
gb.qt4.webkit
gb.qt4.webview
gb.qt5
gb.qt5.ext
gb.qt5.opengl
gb.qt5.webkit
gb.qt5.webview
gb.qt6
gb.qt6.ext
gb.qt6.opengl
gb.qt6.webview
gb.report
gb.report2
gb.scanner
gb.sdl
gb.sdl.sound
gb.sdl2
gb.sdl2.audio
gb.settings
gb.signal
gb.term
gb.test
gb.util
gb.util.web
gb.v4l
gb.vb
gb.web
gb.web.feed
gb.web.form
gb.web.gui
gb.xml
gb.xml.html
gb.xml.rpc
gb.xml.xslt
Controls pictures
Deprecated components
Developer Documentation
Development Environment Documentation
Documents
Error Messages
Gambas Playground
How To's
Language Index
Language Overviews
Last Changes
Lexicon
README
Search the wiki
To Do
Topics
Tutorials
Wiki License
Wiki Manual

Digest (gb.openssl)

This class wraps the hash algorithms of the OpenSSL project. See Wikipedia: Cryptographic hash function for a start on hash functions.

This class is static.

This class acts like a read-only static array.

Static properties
List   Return a list of all supported algorithm names on the current system. The mapping from a name to the actual algorithm is done by OpenSSL internally. The gb.openssl component does not have control over it in any way.

Static methods
IsSupported   Static Function IsSupported ( method As String ) As Boolean

Example

You get the virtual object which represents a specific algorithm by using its name as a key to index the Digest class. From this virtual object, you can hash messages. So, to produce a SHA-256 digest of a string, we would use:

Use "gb.openssl"
Print Base64$(Digest["sha256"]("Gambas Almost Means BASIC!"))
uIcY2lpgsRRkYrY4ETvuAJQmTMrpqV0TckAShNSl+KI=

Keep in mind that the hash functions return raw binary data which can do strange things with your terminal when printed. If you intend to print them, you should use the built-in Base64$ function.