issacapi/bs/sample_bs_ctl.c

#include <stdio.h>
 
#include "issacapi_bs.h"
#include "issacapi_errorcode.h"
 
static const char *ctlB64 =
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static unsigned char ctlBytes[8192] = { 0, };
static int ctlBytesLen = 0;
 
static const char *ctlIssuerB64 =
    "MIIDdTCCAl2gAwIBAgIBATANBgkqhkiG9w0BAQsFADBkMQswCQYDVQQGEwJLUjENMAsGA1UECgwES0lTQTEuMCwGA1UECwwlS29yZWEgQ2VydGlm"
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    "DA1LSVNBIFJvb3RDQSA0MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxepOYmiYpxFdu6SCSVgMCrAgswLbRSYg/+0tah/CjIHMn2Ja"
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    "by9jqL7Wx37fjdqbQ5kwjHcnSHFe9AHu6GSd/425e2ApHFXDYnh6+m0bGkNNrg8/GQ==";
static unsigned char ctlIssuerBytes[4096] = { 0, };
static int ctlIssuerBytesLen = 0;
 
static const char *otherRootCertB64 =
    "MIIDXTCCAkWgAwIBAgIBATANBgkqhkiG9w0BAQsFADBQMQswCQYDVQQGEwJLUjEcMBoGA1UECgwTR292ZXJubWVudCBvZiBLb3JlYTENMAsGA1UE"
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    "D1R1wsNQtCzMgwcErFRZhFZYuxpfmS5y0fZW0seeTjcdxHiR3whYI5U6AI7DjdWIrT9Cd9ByV4aevkBhqkePPIYGmUPXnnqCkdHdnzkMH0WP9TBh"
    "D2jTXZKdcFtTyEJrAgMBAAGjQjBAMB0GA1UdDgQWBBR4A+sMjKbTVXWkh7Tr0ZpmD0xzizAOBgNVHQ8BAf8EBAMCAQYwDwYDVR0TAQH/BAUwAwEB"
    "/zANBgkqhkiG9w0BAQsFAAOCAQEARGJWATwo81x7UEQugNbicL8IWXoV51SZVH3kz49fNUjVoq1n2yzfaMddlblbflDNObp/68DxTlSXCeqFHkgi"
    "/WvyVHERRECXnF0WeeelI+Q8XdF3IJZLT3u5Ss0VAB2loCuC+4hBWSRQu2WZu2Yks9eBN0x6NmtopRmnf2d6VrcFA+WOgUeTjXiDkG52IaPw0w1u"
    "TfmRw5epky5idyY2bfJ1JeVUINMJnOWpgLkOH3xxakoD8F1Fbi6C3t7MmKupojUq/toUDms6zTk3DIkcwd7PALNWL5U8TxNLoroTHSf/lzaOv3o9"
    "KDRa0FQo58bPI7MdbRWE4F3mS/ZIrnv7jQ==";
static unsigned char otherRootCertBytes[4096] = { 0, };
static int otherRootCertBytesLen = 0;
 
static int sample_setup() {
    ISSAC_RETURN result;
 
    result = ISSAC_Initialize();
    if (result != ISSAC_SUCCESS) {
        printf("[ERROR] %s\n", ISSAC_GetErrorMessage(result));
        return 1;
    }
    result = ISSAC_BASE64_Decode(ctlBytes, &ctlBytesLen, sizeof(ctlBytes), ctlB64);
    if (result != ISSAC_SUCCESS) {
        printf("[ERROR] %s\n", ISSAC_GetErrorMessage(result));
        return 1;
    }
    result = ISSAC_BASE64_Decode(ctlIssuerBytes, &ctlIssuerBytesLen, sizeof(ctlIssuerBytes), ctlIssuerB64);
    if (result != ISSAC_SUCCESS) {
        printf("[ERROR] %s\n", ISSAC_GetErrorMessage(result));
        return 1;
    }
    result = ISSAC_BASE64_Decode(otherRootCertBytes, &otherRootCertBytesLen, sizeof(otherRootCertBytes), otherRootCertB64);
    if (result != ISSAC_SUCCESS) {
        printf("[ERROR] %s\n", ISSAC_GetErrorMessage(result));
        return 1;
    }
    return 0;
}
 
static int sample_bs_ctl() {
    ISSAC_RETURN result;
    CERTIFICATETRUSTLIST ctl;
    CERTIFICATE ctlIssuer;
 
    printf("sample_bs_ctl() => ");
 
    ISSAC_CERTIFICATETRUSTLIST_Create(&ctl);
    ISSAC_CERTIFICATE_Create(&ctlIssuer);
 
    // CTL 읽기
    result = ISSAC_CERTIFICATETRUSTLIST_Read_Memory(&ctl, ctlBytes, ctlBytesLen);
    // CTL 발급자의 인증서 읽기
    if (result == ISSAC_SUCCESS) {
        result = ISSAC_CERTIFICATE_Read_Memory(&ctlIssuer, ctlIssuerBytes, ctlIssuerBytesLen);
    }
    // CTL 검증하기 (SignedData)
    if (result == ISSAC_SUCCESS) {
        result = ISSAC_CERTIFICATETRUSTLIST_Verify(&ctl, &ctlIssuer);
    }
    // CRL의 유효기간 확인하기 (0 : 현재시간)
    //  - Note(jyha) : 샘플의 CTL은 유효기간이 만료되었으므로 확인하지 않음. (실제 적용 시 확인할 것!)
    // if (result == ISSAC_SUCCESS) {
    //     result = ISSAC_CERTIFICATETRUSTLIST_ValidAt(&ctl, 0);
    // }
    // CTL 활용
    if (result == ISSAC_SUCCESS) {
        CERTIFICATE otherRootCert;
        ISSAC_CERTIFICATE_Create(&otherRootCert);
        // 다른 Root CA 인증서 읽기
        result = ISSAC_CERTIFICATE_Read_Memory(&otherRootCert, otherRootCertBytes, otherRootCertBytesLen);
        if (result == ISSAC_SUCCESS) {
            // 이 Root CA 인증서가 CTL 에 포함되어 있는지 확인하기
            result = ISSAC_CERTIFICATETRUSTLIST_IsCertificateTrusted(&ctl, &otherRootCert);
        }
        ISSAC_CERTIFICATE_Delete(&otherRootCert);
    }
 
    ISSAC_CERTIFICATETRUSTLIST_Delete(&ctl);
    ISSAC_CERTIFICATE_Delete(&ctlIssuer);
 
    if (result == ISSAC_SUCCESS) {
        printf("[OK]\n");
        return 0;
    } else {
        printf("[ERROR] %s\n", ISSAC_GetErrorMessage(result));
        return 1;
    }
}
 
int main() {
    int result;
 
    result = sample_setup();
    if (result != 0) {
        return result;
    }
 
    return sample_bs_ctl();
}