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<a href="https://gitlab.com/ZoltanFridrich" style="color: #1068bf;">Zoltán Fridrich</a> created an issue: <a href="https://gitlab.com/gnutls/gnutls/-/issues/1408" style="color: #1068bf;">#1408</a>
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Assignee: Zoltán Fridrich
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<p dir="auto" style="color: #303030; margin: 0 0 16px;" align="initial">With FIPS mode enabled, if a <code style='font-size: 90%; color: #1f1f1f; word-wrap: break-word; background-color: #f0f0f0; border-radius: 4px; margin-top: 0; font-weight: inherit; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; white-space: pre-wrap; overflow-wrap: break-word; word-break: keep-all; padding: 2px 4px;'>key = key1|key2</code> given to the XTS setkey functions is such that <code style='font-size: 90%; color: #1f1f1f; word-wrap: break-word; background-color: #f0f0f0; border-radius: 4px; font-weight: inherit; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; white-space: pre-wrap; overflow-wrap: break-word; word-break: keep-all; padding: 2px 4px;'>key1 = key2</code> the library is put into an error state and becomes unusable.
<code style='font-size: 90%; color: #1f1f1f; word-wrap: break-word; background-color: #f0f0f0; border-radius: 4px; font-weight: inherit; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; white-space: pre-wrap; overflow-wrap: break-word; word-break: keep-all; padding: 2px 4px;'>if (_gnutls_fips_mode_enabled() && gnutls_memcmp(key, key + AES128_KEY_SIZE, AES128_KEY_SIZE) == 0) _gnutls_switch_lib_state(LIB_STATE_ERROR);</code></p>
<p dir="auto" style="color: #303030; margin: 0;" align="initial"><strong style="font-weight: bold; margin-top: 0;">Expectation</strong>:
Setkey fails but the library is still usable.</p>
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