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#!/usr/bin/env perl
#
# Based on NIST CTR_DRBG.rsp validation file
# Only uses AES-256-CTR cases that use a Derivation function
# and concats nonce and personalization for initialization.
use strict;
my $file = shift;
open(TEST_DATA, "$file") or die "Opening test cases '$file': $!";
sub get_suite_val($)
{
my $name = shift;
my $val = "";
my $line = <TEST_DATA>;
($val) = ($line =~ /\[$name\s\=\s(\w+)\]/);
return $val;
}
sub get_val($)
{
my $name = shift;
my $val = "";
my $line;
while($line = <TEST_DATA>)
{
next if($line !~ /=/);
last;
}
($val) = ($line =~ /^$name = (\w+)/);
return $val;
}
my $cnt = 1;;
while (my $line = <TEST_DATA>)
{
next if ($line !~ /^\[AES-256 use df/);
my $PredictionResistanceStr = get_suite_val("PredictionResistance");
my $PredictionResistance = 0;
$PredictionResistance = 1 if ($PredictionResistanceStr eq 'True');
my $EntropyInputLen = get_suite_val("EntropyInputLen");
my $NonceLen = get_suite_val("NonceLen");
my $PersonalizationStringLen = get_suite_val("PersonalizationStringLen");
my $AdditionalInputLen = get_suite_val("AdditionalInputLen");
for ($cnt = 0; $cnt < 15; $cnt++)
{
my $Count = get_val("COUNT");
my $EntropyInput = get_val("EntropyInput");
my $Nonce = get_val("Nonce");
my $PersonalizationString = get_val("PersonalizationString");
my $AdditionalInput1 = get_val("AdditionalInput");
my $EntropyInputPR1 = get_val("EntropyInputPR") if ($PredictionResistance == 1);
my $EntropyInputReseed = get_val("EntropyInputReseed") if ($PredictionResistance == 0);
my $AdditionalInputReseed = get_val("AdditionalInputReseed") if ($PredictionResistance == 0);
my $AdditionalInput2 = get_val("AdditionalInput");
my $EntropyInputPR2 = get_val("EntropyInputPR") if ($PredictionResistance == 1);
my $ReturnedBits = get_val("ReturnedBits");
if ($PredictionResistance == 1)
{
print("CTR_DRBG NIST Validation (AES-256 use df,$PredictionResistanceStr,$EntropyInputLen,$NonceLen,$PersonalizationStringLen,$AdditionalInputLen) #$Count\n");
print("ctr_drbg_validate_pr");
print(":\"$Nonce$PersonalizationString\"");
print(":\"$EntropyInput$EntropyInputPR1$EntropyInputPR2\"");
print(":\"$AdditionalInput1\"");
print(":\"$AdditionalInput2\"");
print(":\"$ReturnedBits\"");
print("\n\n");
}
else
{
print("CTR_DRBG NIST Validation (AES-256 use df,$PredictionResistanceStr,$EntropyInputLen,$NonceLen,$PersonalizationStringLen,$AdditionalInputLen) #$Count\n");
print("ctr_drbg_validate_nopr");
print(":\"$Nonce$PersonalizationString\"");
print(":\"$EntropyInput$EntropyInputReseed\"");
print(":\"$AdditionalInput1\"");
print(":\"$AdditionalInputReseed\"");
print(":\"$AdditionalInput2\"");
print(":\"$ReturnedBits\"");
print("\n\n");
}
}
}
close(TEST_DATA);
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