Verify the Integrity of your Software Download V4.5 Build 006

The integrity of Amenaza's SecurITree program can be confirmed in three ways. The first method uses the SHA-1 algorithm specified by NIST in FIPS 180-1 to compute a cryptographic hash or message digest of downloaded files.

SHA-1 Checksums:

Programs to compute and verify SHA-1 hashes are widely available. This makes it convenient for verifying that tampering of files has not occurred.

SHA-256 Checksums:

These methods are not a 100% guarantee of integrity. If Amenaza's web server has been compromised it is possible that the intruder may have introduced viruses, worms, Trojan Horses or other malware into the downloadable files and then posted matching SHA-1 message digests on the website! The next integrity verification mechanism described below is a stronger guarantee of file integrity and should be used if SecurITree will be used in a sensitive environment or if there is any suspicion that the downloaded code has been compromised.

The downloadable files have been digitally signed using Pretty Good Privacy (PGP) software and/or GNU Privacy Guard. This software is available commercially from http://www.pgp.com or as freeware from http://www.gnupg.org.

PGP Signature Files:

The public half of the Amenaza Software signing key pair can be obtained from the PGP keyserver (http://keyserver.pgp.com) using the PGP Key Management utility. Search for "Amenaza Technologies Limited Software Signing Key" or "support@amenaza.com". Note that this site cannot be queried using the LDAP utility built into most browsers.

Since the private half of the Amenaza Software signing key pair used to sign the files is not stored on the Amenaza web server it is NOT possible for an intruder to create a valid signature file even if they compromise the web server. It is, however, possible that the PGP key server may have had the Amenaza Software signing key replaced by a rogue key.

If you are operating in a sensitive environment we recommend that you contact Amenaza Technologies at 1-888-949-9797 (1-403-263-7737) to verify the signing key fingerprint in an 'Out of Band' manner.

Amenaza Software Signing Key Fingerprint:

AE31 1695 86F5 BF87 0384 5314 D4F9 ABC2 D654 5B79

OR

Headquarters

 406 - 917 85 St SW, Suite 125
 Calgary, AB T3H 5Z9   CANADA

 1-888-949-9797 North America toll free
 +1 403 263 7737 International

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