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Technology: CryptoBiometrics(TM).
Biometrics is not a secret and  crypto keys are difficult to
manage. By binding crypto and biometrics we will be able to
overcome those weaknesses.
PKI uses asymmetric / symmetric key algorithms , whereas
binding to specific users is performed by assigning digital
certificates issued by Certificate Authority (CA)
CryptoBiometrics™ (in use since 2000) uses the same
asymmetric/symmetric key algorithms, whereas binding
to specific users is performed by 3-factor based identity
proofing , including user’s biometrics. CryptoBiometrics™
(US patent 7,689,832) has following important advantages:
1.  Provides process capable of verifying  online  vs.
Certificate Authority that the person appearing in the
certificate is assigned with the key shown at the certificate.
2. Since protecting private key is virtually impossible in
Open Internet –  instead of using CA assigned private key
bound to person’s identity we  use biometrics attribute,  
that can be bound to the person’s identity as well as to
the existing Crypto technology.
3. Verifying computer cannot accept forged SentryCom
CryptoBiometrics™ certificates. If  bank wants to verify
transaction , signed with CryptoBiometrics™ certificate ,
then this verifying computer will be securely connected
with SentryCom CA server. Forgery will need to go to
rogue servers and thus will be prevented.
4.SentryCom CryptoBiometrics™ certificate adds email
address to the person’s first name and last name , which
makes this description unique. If person updates his
email address with SentryCom CA  (using self-serving
administration , contingent on 3-factor strong
authentication) then SentryCom CA will keep track
of new as well as old email, as bound to the person.

5. To enroll into SentryCom
CryptoBiometrics™ one needs third-party
Identity Assurance , provided by enterprise,
requesting our service. For example by
bank providing us with its customer’s
credentials. In this fashion we can be
assured that user identities are verified
properly.
6. Additional FAQ:
The CryptoBiometrics™ key
is valid  until it is revoked.
Dating done by a secure time-stamp service
We use 1024 bit RSA signing
keys , as legally accepted standard.