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68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
#define WIN32_NO_STATUS
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#include <windows.h>
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#undef WIN32_NO_STATUS
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#include <bcrypt.h>
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#include <ntstatus.h>
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#include "test_assert.h"
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#ifndef NT_SUCCESS
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#define NT_SUCCESS(Status) (((NTSTATUS)(Status)) >= 0)
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#endif
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static void expect_success(NTSTATUS status) {
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TEST_CHECK_MSG(NT_SUCCESS(status), "Expected success NTSTATUS, got 0x%08lx", (unsigned long)status);
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}
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int main(void) {
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UCHAR temp[32] = {0};
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const UCHAR zero_block[32] = {0};
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NTSTATUS status = BCryptGenRandom(NULL, temp, sizeof(temp), 0);
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TEST_CHECK_EQ(STATUS_INVALID_HANDLE, status);
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UCHAR first[32] = {0};
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status = BCryptGenRandom(NULL, first, sizeof(first), BCRYPT_USE_SYSTEM_PREFERRED_RNG);
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expect_success(status);
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TEST_CHECK_MSG(memcmp(first, zero_block, sizeof(first)) != 0,
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"BCryptGenRandom with system RNG flag left buffer zeroed");
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UCHAR second[32] = {0};
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status = BCryptGenRandom(NULL, second, sizeof(second), BCRYPT_USE_SYSTEM_PREFERRED_RNG);
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expect_success(status);
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TEST_CHECK_MSG(memcmp(second, zero_block, sizeof(second)) != 0,
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"BCryptGenRandom produced zeroed buffer on repeat call");
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TEST_CHECK_MSG(memcmp(first, second, sizeof(first)) != 0,
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"BCryptGenRandom produced identical buffers across calls");
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UCHAR entropy_buffer[32];
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UCHAR entropy_original[32];
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memset(entropy_buffer, 0x5a, sizeof(entropy_buffer));
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memcpy(entropy_original, entropy_buffer, sizeof(entropy_buffer));
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status = BCryptGenRandom(NULL, entropy_buffer, sizeof(entropy_buffer),
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BCRYPT_RNG_USE_ENTROPY_IN_BUFFER | BCRYPT_USE_SYSTEM_PREFERRED_RNG);
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expect_success(status);
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TEST_CHECK_MSG(memcmp(entropy_buffer, entropy_original, sizeof(entropy_buffer)) != 0,
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"Entropy flag did not modify buffer");
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status = BCryptGenRandom((BCRYPT_ALG_HANDLE)0x1, first, sizeof(first), 0);
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TEST_CHECK_EQ(STATUS_NOT_IMPLEMENTED, status);
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status = BCryptGenRandom(NULL, first, sizeof(first), 0x4);
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TEST_CHECK_EQ(STATUS_INVALID_HANDLE, status);
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status = BCryptGenRandom((BCRYPT_ALG_HANDLE)0x1, first, sizeof(first), BCRYPT_USE_SYSTEM_PREFERRED_RNG);
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TEST_CHECK_EQ(STATUS_NOT_IMPLEMENTED, status);
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status = BCryptGenRandom(NULL, NULL, sizeof(first), 0);
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TEST_CHECK_EQ(STATUS_INVALID_HANDLE, status);
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status = BCryptGenRandom(NULL, NULL, 0, 0);
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TEST_CHECK_EQ(STATUS_INVALID_HANDLE, status);
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printf("bcrypt_gen_random: passed\n");
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return EXIT_SUCCESS;
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}
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