OpenSSL "enc -bf-ecb" for Blowfish/ECB Encryption

Tutorial notes and example codes are provided OpenSSL 'enc -bf-ecb' command for Blowfish encryption in ECB mode. Topics include introduction and installation of OpenSSL; ECB (Electronic CodeBook) cipher operation mode; Literal Key options to specify secret key and IV directly; Salted Key and Random Salt options to specify secret key and IV indirectly; Prepended cipher headers; PKCS#5 standard padding.

What is OpenSSL?

Installing OpenSSL for Windows

OpenSSL "enc" Blowfish Ciphers

Ways to Control Secret Key and IV

"bf-ecb" Cipher with Literal Key

"bf-ecb" Cipher on Multiple Blocks

Secret Key Padding and Truncation

"bf-ecb" Cipher with Salted Key

Salted Key Generation Algorithm

"bf-ecb" Cipher with Random Salt

OpenSSL Default Padding - PKCS#5

"enc -bf-ecb" Command Summary

Conclusions:

Table of Contents

 About This Book

 Blowfish Cipher Algorithm

 Perl Crypt::Blowfish Module

 Perl Crypt::ECB Perl Module

 Perl Crypt::CBC Module

 Perl Crypt::CFB Perl Module

OpenSSL "enc -bf-ecb" for Blowfish/ECB Encryption

 OpenSSL "enc -bf-cbc" for Blowfish/CBC Encryption

 OpenSSL "enc -bf-cfb" for Blowfish/CFB Encryption

 OpenSSL "enc -bf-ofb" for Blowfish/OFB Encryption

 References

 PDF Printing Version