DS1955B Java™-powered Cryptographic iButton™
Dallas Semiconductor, Inc. - FIPS 140 #111
The Dallas Semiconductor 1955 Java-Powered Cryptographic iButton, when operated in FIPS mode, provides SHA-1 hashing, identity-based challenge-response authentication, statistical random number generator tests, and a SHA-1 known answer test. When not operated in FIPS mode, the device provides more cryptographic services such as a high-speed math accelerator for 1024-bit public key cryptography. The module's single silicon chip is encased in a stainless steel button which is rugged enough to withstand harsh outdoor environments.
Key facts
- Scheme
- FIPS 140
- Certificate
- 111
- Standard
- FIPS 140-1
- Security level
- Level 3
- Status
- historical
- Vendor
- Dallas Semiconductor, Inc.
- Module type
- Hardware
- Embodiment
- Multi-Chip Stand Alone
- Lab
- CYGNACOM SOLUTIONS INC
- First validated
- August 30, 2000
- Versions
- 1.11
- Caveat
- When using vendor-configured with the FIPS 140-1 Applet
Algorithms
- SHA-1
Algorithm families of the CAVP certificates listed for this module, plus post-quantum algorithms named in its documents.
CVEs that may affect this product
sec-certs has not matched any CVE to this certificate. That is not proof the product is unaffected.
Related CVEs and certificate references are automated matches by sec-certs, not reviewed by humans: treat them as "may be affected" and verify before acting.
Documents and sources
Source: sec-certs.org (CRoCS, Masaryk University), from NIST CMVP and the Common Criteria Portal - dataset of September 21, 2026 - synced October 15, 2026
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