PKCS #5: Password-Based Key Derivation Function 2 (PBKDF2) Test Vectors
draft-josefsson-pbkdf2-test-vectors-06

Network Working Group                                       S. Josefsson
Internet-Draft                                                    SJD AB
Intended status: Informational                        September 14, 2010
Expires: March 18, 2011

 PKCS #5 Password Based Key Derivation Function 2 (PBKDF2) Test Vectors
                 draft-josefsson-pbkdf2-test-vectors-06

Abstract

   This document contains test vectors for the Public-Key Cryptography
   Standards (PKCS) #5 Password Based Key Derivation Function 2 (PBKDF2)
   with the Hash-based Message Authentication Code (HMAC) Secure Hash
   Algorithm (SHA-1) pseudorandom function.

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   This Internet-Draft will expire on March 18, 2011.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 3
   2.  PBKDF2 HMAC-SHA1 Test Vectors . . . . . . . . . . . . . . . . . 3
   3.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . 5
   4.  Copying conditions  . . . . . . . . . . . . . . . . . . . . . . 5
   5.  Security Considerations . . . . . . . . . . . . . . . . . . . . 5
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 5
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 5
     7.1.  Normative References  . . . . . . . . . . . . . . . . . . . 5
     7.2.  Informative References  . . . . . . . . . . . . . . . . . . 6
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . . . 6

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1.  Introduction

   The Public-Key Cryptography Standards (PKCS) #5 [RFC2898] Password
   Based Key Derivation Function 2 (PBKDF2) is used by several protocols
   to derive encryption keys from a password.

   For example, Salted Challenge Response Authentication Mechanism
   (SCRAM) [RFC5802] uses PBKDF2 with Hash-based Message Authentication
   Code (HMAC) [RFC2104] and Secure Hash Algorithm (SHA-1)
   [FIPS.180-1.1995].

   Test vectors for the algorithm were not included in the original
   specification, but are often useful for implementers.  This document
   addresses the shortcoming.

2.  PBKDF2 HMAC-SHA1 Test Vectors

   The input strings below are encoded using ASCII [ANSI.X3-4.1986].
   The sequence "\0" (without quotation marks) means a literal ASCII NUL
   value (1 octet).

     Input:
       P = "password" (8 octets)
       S = "salt" (4 octets)
       c = 1
       dkLen = 20

     Output:
       DK = 0c 60 c8 0f 96 1f 0e 71
            f3 a9 b5 24 af 60 12 06
            2f e0 37 a6             (20 octets)

     Input:
       P = "password" (8 octets)
       S = "salt" (4 octets)
       c = 2
       dkLen = 20

     Output:
       DK = ea 6c 01 4d c7 2d 6f 8c
            cd 1e d9 2a ce 1d 41 f0
            d8 de 89 57             (20 octets)

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     Input:
       P = "password" (8 octets)
       S = "salt" (4 octets)
       c = 4096
       dkLen = 20

     Output:
       DK = 4b 00 79 01 b7 65 48 9a
            be ad 49 d9 26 f7 21 d0
            65 a4 29 c1             (20 octets)

     Input:
       P = "password" (8 octets)
       S = "salt" (4 octets)
       c = 16777216
       dkLen = 20

     Output:
       DK = ee fe 3d 61 cd 4d a4 e4
            e9 94 5b 3d 6b a2 15 8c
            26 34 e9 84             (20 octets)

     Input:
       P = "passwordPASSWORDpassword" (24 octets)
       S = "saltSALTsaltSALTsaltSALTsaltSALTsalt" (36 octets)
       c = 4096
       dkLen = 25

     Output:
       DK = 3d 2e ec 4f e4 1c 84 9b
            80 c8 d8 36 62 c0 e4 4a
            8b 29 1a 96 4c f2 f0 70
            38                      (25 octets)

     Input:
       P = "pass\0word" (9 octets)
       S = "sa\0lt" (5 octets)
       c = 4096
       dkLen = 16

     Output:
       DK = 56 fa 6a a7 55 48 09 9d
            cc 37 d7 f0 34 25 e0 c3 (16 octets)

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3.  Acknowledgements

   Barry Brachman and Love Hoernquist Aestrand confirmed the test
   vectors (using independent implementations) and pointed out a mistake
   in the salt octet length count.

4.  Copying conditions

   This document should be considered a Code Component and is thus
   available under the BSD license.

5.  Security Considerations

   The security considerations in [RFC2898] apply.  This document does
   not introduce any new security considerations.

6.  IANA Considerations

   None.

7.  References

7.1.  Normative References

   [ANSI.X3-4.1986]
              American National Standards Institute, "Coded Character
              Set - 7-bit American Standard Code for Information
              Interchange", ANSI X3.4, 1986.

   [RFC2104]  Krawczyk, H., Bellare, M., and R. Canetti, "HMAC: Keyed-
              Hashing for Message Authentication", RFC 2104,
              February 1997.

   [RFC2898]  Kaliski, B., "PKCS #5: Password-Based Cryptography
              Specification Version 2.0", RFC 2898, September 2000.

   [FIPS.180-1.1995]
              National Institute of Standards and Technology, "Secure
              Hash Standard", FIPS PUB 180-1, April 1995,
              <http://www.itl.nist.gov/fipspubs/fip180-1.htm>.

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7.2.  Informative References

   [RFC5802]  Newman, C., Menon-Sen, A., Melnikov, A., and N. Williams,
              "Salted Challenge Response Authentication Mechanism
              (SCRAM) SASL and GSS-API Mechanisms", RFC 5802, July 2010.

Author's Address

   Simon Josefsson
   SJD AB
   Hagagatan 24
   Stockholm  113 47
   SE

   Email: simon@josefsson.org
   URI:   http://josefsson.org/

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