Internet Engineering Task Force (IETF) S. Josefsson

Internet Engineering Task Force (IETF) S. Josefsson
Request for Comments: 6070 SJD AB
Category: Informational January 2011
ISSN: 2070-1721

PKCS #5: Password-Based Key Derivation Function 2 (PBKDF2)
Test Vectors

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.

Status of This Memo

This document is not an Internet Standards Track specification; it is
published for informational purposes.

This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Not all documents
approved by the IESG are a candidate for any level of Internet
Standard; see Section 2 of RFC 5741.

Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc6070.

Copyright Notice

Copyright (c) 2011 IETF Trust and the persons identified as the
document authors. All rights reserved.

This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.

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RFC 6070 PKCS #5 PBKDF2 Test Vectors January 2011

Table of Contents

1. Introduction ....................................................2
2. PBKDF2 HMAC-SHA1 Test Vectors ...................................2
3. Acknowledgements ................................................4
4. Copying Conditions ..............................................4
5. Security Considerations .........................................4
6. References ......................................................4
6.1. Normative References .......................................4
6.2. Informative References .....................................5

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). "DK" refers to the Derived Key.

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)

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RFC 6070 PKCS #5 PBKDF2 Test Vectors January 2011

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)

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)

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RFC 6070 PKCS #5 PBKDF2 Test Vectors January 2011

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)

3. Acknowledgements

Barry Brachman and Love Hornquist Astrand 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. References

6.1. 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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RFC 6070 PKCS #5 PBKDF2 Test Vectors January 2011

6.2. 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: [email protected]
URI: http://josefsson.org/

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