Free Digitally Sign Software

SignGUI by Briggs Softworks

SignGUI is a free graphical front end for Microsoft''s SignTool.exe console utility, used by software developers to digitally sign their programs for authentication.

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OpenSSL by ComponentSpot

With the Open SSL 0.9.7c library, developers can write applications that take advantage of Secure Sockets Layer (SSL v2/v3), Transport Layer Security (TLS v1), and a full-strength general-purpose cryptography library. Security features such as data integrity, authenticity, and privacy can be implemented. To compile for Win32, Perl or compiling under Cygwin is required. Some of the encryption routines/algorithms are covered by patents.

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XLRSecTool for Linux by XLReader Project

XLRSecTool helps creating either self-signed certificates or trusted CA (Certificate Authority). Once the certificate issued, you may sign your documents (JAR or XLR), applications, and applets (for use with SUN's JavaPlugin) The appli contains a step-by-step help to create your trusted certificate issued by Thawte or Verisign certificate authorities.

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