File extension Details of EFR, EFU, BHX, BFA, BIN, PDC, SEF, SUF, SPDF

Name:	EFR
File Type:	Encryptafile Private Key File
Popularity:	2
Category:	encoded
File Description:	Private Key used to authenticate an encrypted Encryptafile (.EFL) file; contains a hexadecimal representation of the private key used to created the digital signature for the file. The length of a private key file must be greater than or equal to 16 bits, and less than or equal to 7128 bits.
Open Programs:	Windows XenoSystems Encryptafile

Name:	EFU
File Type:	Encryptafile Public Key File
Popularity:	2
Category:	encoded
File Description:	Public Key used to authenticate an encrypted Encryptafile (.EFL) file; contains a hexadecimal representation of the public key; made available to the public and used along with the Private Key (.EFR) file to verify a digitally signed file. The length of a public key file must be greater than or equal to 16 bits, and less than or equal to 7128 bits.
Open Programs:	Windows XenoSystems Encryptafile

Name:	BHX
File Type:	BinHex Encoded File
Popularity:	3
Category:	encoded
File Description:	Compressed file encoded using BinHex (binary-to-hexadecimal) encoding; often used for compressing and converting Macintosh files from binary to a text format; same as the more commonly used .HQX extension.
Open Programs:	Mac OS Smith Micro Stuffit Expander Windows Smith Micro Stuffit Deluxe Corel WinZip

Name:	BFA
File Type:	Blowfish Encrypted File
Popularity:	3
Category:	encoded
File Description:	Secure file encrypted using the Blowfish encryption method; uses a symmetric block cipher and a variable-length key, from 32 bits to 448 bits, to encrypt the file. Over 150 products use the Blowfish algorithm; the complete list is available on the Schneier website. NOTE: A password may be required to successfully open the file.
Open Programs:	Mac OS Crypt Windows Blowfish Advanced CS Crypto Systems FineCrypt SlavaSoft QuickCrypt Library MySecret Linux OpenBSD (built-in)

Name:	BIN
File Type:	Macbinary II Encoded File   (Most common)
Popularity:	5
Category:	encoded
File Description:	Compressed file encoded as binary or MacBinary; commonly used for transferring Macintosh files over the Internet; ensures the Macintosh resource fork and data fork are kept in one file.
Open Programs:	Mac OS Smith Micro Stuffit Expander Windows Smith Micro Stuffit Deluxe

Name:	PDC
File Type:	Lizard Safeguard Secure PDF File
Popularity:	3
Category:	encoded
File Description:	Copy-protected .PDF file encrypted with Lizard Safeguard PDF security software; protects the PDF document from unauthorized viewing, copying, sharing, modifying, screen grabbing, and printing. PDC files are secured using AES 256-bit encryption, DRM controls, and a real-time Web-based licensing system; they can only be opened by authorized users.
Open Programs:	Mac OS LockLizard Secure PDF Viewer Windows LockLizard Safeguard PDF Writer or Secure PDF Viewer

Name:	SEF
File Type:	Encryptafile Signature File
Popularity:	3
Category:	encoded
File Description:	Digital signature created by Encryptafile after running the "Sign a File" task; used to verify the identity of a Encryptafile .EFL file; may store the signature in a digital envelope if the digital envelope option is selected in the signature options.
Open Programs:	Windows XenoSystems Encryptafile

Name:	SUF
File Type:	Ccrypt Encrypted File
Popularity:	3
Category:	encoded
File Description:	File encrypted with ccrypt, an open-source encryption utility; uses an asymmetric encryption algorithm based on the Rijndael cipher; requires a password to open. Ccrypt files use the .CPT file extension by default; the ".suf" extension is used if the user types "ccrypt -S" when encrypting a file.
Open Programs:	Mac OS ccrypt Windows ccrypt Linux ccrypt

Name:	SPDF
File Type:	Sealed PDF
Popularity:	3
Category:	encoded
File Description:	A .PDF file that has been sealed, or locked, using the SealedMedia Sealer; can only be opened by users with sufficient rights; authorization rights are stored on a License Server, which also tracks usage of the document. NOTE: To view an SPDF file, first unseal it using Oracle SealedMedia Unsealer, then open it with Adobe Acrobat or Acrobat Reader.
Open Programs:	Mac OS Oracle SealedMedia Unsealer Windows Oracle SealedMedia Unsealer

Name:	SPD
File Type:	Sealed Acrobat Document
Popularity:	2
Category:	encoded
File Description:	Acrobat document that has been sealed (or locked) using the SealedMedia Sealer; can only be opened by users with sufficient access rights; user authorization rights are stored on a License Server, which also tracks usage of the document. NOTE: To view an SPD file, first unseal the document using Oracle SealedMedia Unsealer, then open the unsealed file in Adobe Acrobat.
Open Programs:	Mac OS Oracle SealedMedia Unsealer Windows Oracle SealedMedia Unsealer