[SOLVED] Support Information: CGetSigningParams-3878

Error :

Unknown error
Support Information: CGetSigningParams-3878

Solution :

1. Launch Adobe Reader
2. Select Edit -> Preferences 
3. 
4. Select "Signatures" from Categories
5. Click "More..." button on Creation & Appearance block
   
6. Uncheck "Use modern user interface for signing and Digital ID configuration"
   
7. Click New
   
8. Choose Imported graphic, Click File 
9. 
10. Click "OK" button and then again click "OK" button on Preference dialog

Load a PKCS#12 with OpenSSL

#include <stdio.h>

#include <stdlib.h>

#include <openssl/pem.h>

#include <openssl/err.h>

#include <openssl/pkcs12.h>

/* Simple PKCS#12 file reader */

int main(int argc, char **argv)

{

    FILE *fp;

    EVP_PKEY *pkey;

    X509 *cert;

    STACK_OF(X509) *ca = NULL;

    PKCS12 *p12;

    int i;

    if (argc != 4) {

        fprintf(stderr, "Usage: pkread p12file password opfile\n");

        exit (1);

    }

    OpenSSL_add_all_algorithms();

    ERR_load_crypto_strings();

    if (!(fp = fopen(argv[1], "rb"))) {

        fprintf(stderr, "Error opening file %s\n", argv[1]);

        exit(1);

    }

    p12 = d2i_PKCS12_fp(fp, NULL);

    fclose (fp);

    if (!p12) {

        fprintf(stderr, "Error reading PKCS#12 file\n");

        ERR_print_errors_fp(stderr);

        exit (1);

    }

    if (!PKCS12_parse(p12, argv[2], &pkey, &cert, &ca)) {

        fprintf(stderr, "Error parsing PKCS#12 file\n");

        ERR_print_errors_fp(stderr);

        exit (1);

    }

    PKCS12_free(p12);

    if (!(fp = fopen(argv[3], "w"))) {

        fprintf(stderr, "Error opening file %s\n", argv[1]);

        exit(1);

    }

    if (pkey) {

        fprintf(fp, "***Private Key***\n");

        PEM_write_PrivateKey(fp, pkey, NULL, NULL, 0, NULL, NULL);

    }

    if (cert) {

        fprintf(fp, "***User Certificate***\n");

        PEM_write_X509_AUX(fp, cert);

    }

    if (ca && sk_X509_num(ca)) {

        fprintf(fp, "***Other Certificates***\n");

        for (i = 0; i < sk_X509_num(ca); i++) 

            PEM_write_X509_AUX(fp, sk_X509_value(ca, i));

    }

    sk_X509_pop_free(ca, X509_free);

    X509_free(cert);

    EVP_PKEY_free(pkey);

    fclose(fp);

    return 0;

}

[SOLVED] Exception in thread "main" java.security.NoSuchProviderException: No such provider: BC

If you have problem or error "Exception in thread "main" java.security.NoSuchProviderException: No such provider: BC".  This is Solusion.

Compute Digest Using Md5,SHA1,SHA256,SHA384,SHA512,SHA3-224,SHA3-256,SHA3-512

I Want To Show You How to compute digest  Using Md5,SHA1,SHA256,SHA384,SHA512,SHA3-224,SHA3-256,SHA3-512 in QT. This my code,

      #include <QCryptographicHash> 

       -------

       -------

    // MD5

    QCryptographicHash cryptoHashMd5(QCryptographicHash::Md5);

    //SHA1

    QCryptographicHash cryptoHashSHA1(QCryptographicHash::Sha1);

    //SHA224

    QCryptographicHash cryptoHashSHA224(QCryptographicHash::Sha224);

    //SHA256

    QCryptographicHash cryptoHashSHA256(QCryptographicHash::Sha256);

    //SHA 384

    QCryptographicHash cryptoHashSHA384(QCryptographicHash::Sha384);

    //SHA 512

    QCryptographicHash cryptoHashSHA512(QCryptographicHash::Sha512);

    //SHA3-256

    QCryptographicHash cryptoHashSHA3256(QCryptographicHash::Sha3_256);

    //SHA3-224

    QCryptographicHash cryptoHashSHA3224(QCryptographicHash::Sha3_224);

    //SHA3-512

    QCryptographicHash cryptoHashSHA3512(QCryptographicHash::Sha3_512);

    //Compute input digest using Md5

    cryptoHashMd5.addData(ui->textEdit_input->toPlainText().toLatin1());

    //Compute input digest using SHA1

    cryptoHashSHA1.addData(ui->textEdit_input->toPlainText().toLatin1());

    //Compute input digest using SHA224

    cryptoHashSHA224.addData(ui->textEdit_input->toPlainText().toLatin1());

    //Compute input digest using SHA256

    cryptoHashSHA256.addData(ui->textEdit_input->toPlainText().toLatin1());

    //Compute input digest using SHA384

    cryptoHashSHA384.addData(ui->textEdit_input->toPlainText().toLatin1());

    //Compute input digest using SHA512

    cryptoHashSHA512.addData(ui->textEdit_input->toPlainText().toLatin1());

    //Compute input digest using SHA3-256

    cryptoHashSHA3256.addData(ui->textEdit_input->toPlainText().toLatin1());

    //Compute input digest using SHA3-224

    cryptoHashSHA3224.addData(ui->textEdit_input->toPlainText().toLatin1());

    //Compute input digest using SHA3-512

    cryptoHashSHA3512.addData(ui->textEdit_input->toPlainText().toLatin1());

    //set Output Digest MD5

    ui->lineEdit_MD5->setText(cryptoHashMd5.result().toHex().data());

    //set Output Digest SHA1

    ui->lineEdit_SHA1->setText(cryptoHashSHA1.result().toHex().data());

    //set Output Digest SHA224

    ui->lineEdit_SHA224->setText(cryptoHashSHA224.result().toHex().data());

    //set Output Digest SHA256

    ui->lineEdit_SHA256->setText(cryptoHashSHA256.result().toHex().data());

    //Set Output Digest SHA384

    ui->textEdit_OutputSHA384->setText(cryptoHashSHA384.result().toHex().data());

    //Set Output Digest SHA512

    ui->textEdit_OutputSHA512->setText(cryptoHashSHA512.result().toHex().data());

    //Set Output Digest SHA3-256

    ui->textEdit_OutputSHA3256->setText(cryptoHashSHA3256.result().toHex().data());

    //Set Output Digest SHA3-224

    ui->lineEdit_SHA3224->setText(cryptoHashSHA3224.result().toHex().data());

    //Set Ouput Digest SHA3-512

    ui->textEdit_OutputSHA3512->setText(cryptoHashSHA3512.result().toHex().data());

For Detail, Please watch my video. Thanks

Encrypt And Decrypt Using TripleDES in Java

Name Algorithm

TripleDES

KeyLength

192 bit / 24 Character

Block Size

64 bit

Tutorial Encrypt And Decrypt Using TripleDES in Java

https://youtu.be/ih6M79mEzk4

[SOLVED] org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher$1: Key length not 128/192/256 bits.

SOURCE

 ----- 

Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
 byte[] input = "Hello".getBytes();
 byte[] keyByte = "1234567812345678123456781234567".getBytes();
 SecretKeySpec key = new SecretKeySpec(keyByte, "AES");

----

ERROR

Dec 31, 2015 11:57:52 AM aes256.AES256 main
SEVERE: null
org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher$1: Key length not 128/192/256 bits.
at org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher.engineInit(Unknown Source)
at org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher.engineInit(Unknown Source)
at javax.crypto.Cipher.init(Cipher.java:1246)
at javax.crypto.Cipher.init(Cipher.java:1186)
at aes256.AES256.main(AES256.java:36)
Caused by: java.lang.IllegalArgumentException: Key length not 128/192/256 bits.
at org.bouncycastle.crypto.engines.AESFastEngine.generateWorkingKey(Unknown Source)
at org.bouncycastle.crypto.engines.AESFastEngine.init(Unknown Source)
at org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher.init(Unknown Source)
at org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher$BufferedGenericBlockCipher.init(Unknown Source)
... 5 more
BUILD SUCCESSFUL (total time: 1 second)

SOLUTION

Key Leng AES must 128 / 192 / 256 bit or 16 / 24 / 32 Character 

 Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
 byte[] input = "Hello".getBytes();
 byte[] keyByte = "12345678123456781234567812345678".getBytes();
 SecretKeySpec key = new SecretKeySpec(keyByte, "AES");

Encrpt And Decrypt Using AES 256 in Java

Name Algorithm

AES 256

Type Algorithm

Block Cipher

Key Length

256 bit / 32 Character

Link Video Encrypt and Decrypt Using AES 256 in Java

https://youtu.be/NS0QBDq9PfA

Compute digest using MD5 Algorithm in java

Compute digest using SHA1 Algorithm in java

Compute digest using SHA256 Algorithm in java