203 lines
6.9 KiB
Plaintext
203 lines
6.9 KiB
Plaintext
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.\" ========================================================================
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.\"
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.IX Title "EVP_RAND-CRNG-TEST 7ossl"
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.TH EVP_RAND-CRNG-TEST 7ossl "2024-10-22" "3.4.0" "OpenSSL"
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.\" For nroff, turn off justification. Always turn off hyphenation; it makes
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.\" way too many mistakes in technical documents.
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.if n .ad l
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.nh
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.SH "NAME"
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EVP_RAND\-CRNG\-TEST \- The FIPS health testing EVP_RAND filter
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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This \fB\s-1EVP_RAND\s0\fR object acts as a filter between the entropy source
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and its users. It performs \s-1CRNG\s0 health tests as defined in
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\&\s-1SP 800\-90B\s0 <https://csrc.nist.gov/pubs/sp/800/90/b/final> Section 4 \*(L"Health
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Tests\*(R". Most requests are forwarded to the entropy source, either via
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its parent reference or via the provider entropy upcalls.
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.SS "Identity"
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.IX Subsection "Identity"
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\&\*(L"CRNG-TEST\*(R" is the name for this implementation; it can be used with the
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\&\fBEVP_RAND_fetch()\fR function.
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.SS "Supported parameters"
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.IX Subsection "Supported parameters"
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If a parent \s-1EVP_RAND\s0 is specified on context creation, the parent's
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parameters are supported because the request is forwarded to the parent
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seed source for processing.
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.PP
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If no parent \s-1EVP_RAND\s0 is specified on context creation, the following parameters
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are supported:
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.ie n .IP """state"" (\fB\s-1OSSL_RAND_PARAM_STATE\s0\fR) <integer>" 4
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.el .IP "``state'' (\fB\s-1OSSL_RAND_PARAM_STATE\s0\fR) <integer>" 4
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.IX Item "state (OSSL_RAND_PARAM_STATE) <integer>"
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.PD 0
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.ie n .IP """strength"" (\fB\s-1OSSL_RAND_PARAM_STRENGTH\s0\fR) <unsigned integer>" 4
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.el .IP "``strength'' (\fB\s-1OSSL_RAND_PARAM_STRENGTH\s0\fR) <unsigned integer>" 4
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.IX Item "strength (OSSL_RAND_PARAM_STRENGTH) <unsigned integer>"
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.ie n .IP """max_request"" (\fB\s-1OSSL_RAND_PARAM_MAX_REQUEST\s0\fR) <unsigned integer>" 4
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.el .IP "``max_request'' (\fB\s-1OSSL_RAND_PARAM_MAX_REQUEST\s0\fR) <unsigned integer>" 4
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.IX Item "max_request (OSSL_RAND_PARAM_MAX_REQUEST) <unsigned integer>"
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.PD
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These parameters work as described in \*(L"\s-1PARAMETERS\*(R"\s0 in \s-1\fBEVP_RAND\s0\fR\|(3).
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.ie n .IP """fips-indicator"" (\fB\s-1OSSL_DRBG_PARAM_FIPS_APPROVED_INDICATOR\s0\fR) <integer>" 4
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.el .IP "``fips-indicator'' (\fB\s-1OSSL_DRBG_PARAM_FIPS_APPROVED_INDICATOR\s0\fR) <integer>" 4
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.IX Item "fips-indicator (OSSL_DRBG_PARAM_FIPS_APPROVED_INDICATOR) <integer>"
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This parameter works as described in \*(L"\s-1PARAMETERS\*(R"\s0 in \fBprovider\-rand\fR\|(7).
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.SH "NOTES"
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.IX Header "NOTES"
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This \s-1EVP_RAND\s0 is only implemented by the OpenSSL \s-1FIPS\s0 provider.
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.PP
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A context for a health test filter can be obtained by calling:
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.PP
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.Vb 3
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\& EVP_RAND *parent = ...;
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\& EVP_RAND *rand = EVP_RAND_fetch(NULL, "CRNG\-TEST", NULL);
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\& EVP_RAND_CTX *rctx = EVP_RAND_CTX_new(rand, parent);
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.Ve
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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\&\s-1\fBEVP_RAND\s0\fR\|(3), \s-1\fBOSSL_PROVIDER\-FIPS\s0\fR\|(7)
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.SH "HISTORY"
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.IX Header "HISTORY"
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This functionality was added in OpenSSL 3.4.
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.SH "COPYRIGHT"
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.IX Header "COPYRIGHT"
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Copyright 2024 The OpenSSL Project Authors. All Rights Reserved.
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.PP
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Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file \s-1LICENSE\s0 in the source distribution or at
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<https://www.openssl.org/source/license.html>.
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