CHAOS Public Key
CHAOS+PK uses the newest chaos. It is high speed and allows variable-length keys, making protection very reliable and suitable for use in working. Uses the Public Key for encryption CHAOS keys by send off data on email. The program is compact, efficient and user friendly. ... CHAOS & Public Key make dialogue free. ... CHAOS supports Windows drag-and-drop and can compress data before encryption. ... Integrated file shredder included. ... CHAOS made the security simple.
http://www.safechaos.net/DEMO/cpk.exe - 397Kb - Download - Screenshot

Deltacrypt oneclick encryption Personnal Use
DeltaCrypt OneClick Personal does it all: This Public Key Encryption Software encrypts files, text and emails with 1024-bit RSA protection, digital signatures, andunalterable public keys. It offers the basic encryption functionalities FREE OF CHARGE. ... Forpersonal use only. ... Select files and folders or a combination of both and let DeltaCrypt OneClick Personal secure your sensitive data.
http://www.deltacrypt/next/_demo_/OP/setup.exe - 1Kb - Download - Screenshot

Strong File Encryption Decryption
PrimaSoft Strong File Encryption and Decryption utility is a Windows software that allows you easily and quickly to encrypt and decrypt selected files or folders on your computer using the latest industry standard strong encryption algorithms: AES (US Advanced Encryption Standard, secret-key... Strong File Encryption Decryption software supports Compression and Decompression: You can use the most popular ZIP archive file format within the Strong File Encryption / Decryption utility. ... Encryption algorithms are very fast.
http://www.primasoft.com/demo/encdec.exe - 1Mb - Download - Screenshot

PrimaSoft Encryption - Service Edition
Service Process: You can run scheduled auto-recurring encryption and decryption sessions as a service process. Encryption Scheduler: PrimaSoft Encryption utility comes with flexible scheduler. You can schedule auto recurring encryption sessions for any future date and time. ... Encryption algorithms: AES (US Advanced Encryption Standard) secret-key encryption algorithm known as Rijndael. ... RSA encryption is a public-key encryption algorithm. ... Encryption compression and decompression: You can use the most popular ZIP archive file format within the Strong File Encryption / Decryption...
http://www.primasoft.com/demo/encsched.exe - 1Mb - Download - Screenshot

Public Key File and Email Encryption freeware
DeltaCrypt OneClick Personal does it all: This Public Key Encryption Software encrypts files, text and emails with 1024-bit RSA protection, digital signatures, and unalterable public keys. It offers the basic encryption functionalities FREE OF CHARGE. ... Moreover,DeltaCrypt wipes out original source files, when requested at encryption, by replacing the original data with binary ‘00’. ... DeltaCrypt applications provide sophisticated features and a user-friendly interface to keep encryption simple and easy.
http://www.deltacrypt.com/next/_demo_/setup.exe - 1Mb - Download - Screenshot

BCArchive
With BCArchive software you may encrypt and compress a group of files/folders to an encrypted archive (i. e. single file). You may store all you confidential files in such archive accessing it whenever you need it. All your files are encrypted, i. e. ... BCArchive uses strong symmetric encryption algorithms such as Blowfish, IDEA, Triple-DES, CAST5; secure hash algorithms: SHA-1, MD5, RIPEMD-160; asymmetric (public/secret key) algorithms such as RSA, ELGamal/Diffie-Hellman; conforms to specifications PKCS #5, PKCS #12, X.
http://www.jetico.com/bcarchive.exe - 3Mb - Download - Screenshot

Xceed Encryption Library
Xceed Encryption Library is an ActiveX component that allows Windows applications to encrypt and decrypt data using the latest industry standard strong encryption algorithms. It supports traditional secret-key encryption as well as public-key encryption, and can encrypt/decrypt memory buffers,... For public-key encryption, it offers the RSA algorithm unlimited key bit-sizes. ... For traditional strong encryption, the library supports the newly adopted AES (US Advanced Encryption Standard) secret-key encryption algorithm (Rijndael), which uses 128, 192 or 256-bit keys.
http://www.download.xceedsoft.com/XceedEncryption.exe - 16Mb - Download - Screenshot

SecureFile
SecureFile is an encryption and compression program that allows you to encrypt and decrypt files using symmetric key and asymmetric key mechanism. It creates a self-decryption archive which can be decrypted at the other end without any dependencies. It incorporates powerful Blowfish algorithm... The encrypted file can be decrypted simply by double clicking the archive with the given password for symmetric key mechanism and no input is necessary for certificate based encryption and decryption. ... The user needs no installation of any application to decrypt the files.
http://securefile.tripod.com/securefile.zip - 714Kb - Download - Screenshot

CommuniCrypt Mail
Standalone eMail client with built-in strongest asymmetric Public-Key-Encryption with RSA encryption algorithm (RSAES-OAEP). Key length for encrypting up to 7120 bit. This eMail client is fully featured for receiving/sending mails via POP3/SMTP. With the integrated SMTP engine you do not need a... With the integrated file encryption/decryption tool you can encrypt or decrypt your mail attachments or all other files you like with strongest RSA Public Key encryption (key length from 338 bit up to 7120 bit) or with the symmetric AES Rijndael encryption (256 bit).
http://www.communicrypt.com/downloads/ccm_setup.exe - 5Mb - Download - Screenshot

Advanced Encryption Package 2006 Professional
Typically you encrypt files because you don't want others to see them, but sometimes you want to send someone an encrypted file. Most if not all encryption programs allow you to do so--they vary, however, in terms of how difficult the process is. AEP2006 PRO most noteworthy feature may be its... One key is kept secret and is referred to as the private key while the other is made available to others and is called the public key since anyone can access this key. ... Either key may be used to encrypt a message, but only the other corresponding key is used to decrypt the message.
http://www.secureaction.com/encryp...pro/download/aep2006pro_setup.exe - 2Mb - Download - Screenshot