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ring sign a hash value with RSA PSS

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Joker answered on May 19, 2022 Popularity 1/10 Helpfulness 1/10

answer ring sign a hash value with RSA PSS

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ring sign a hash value with RSA PSS

Comment

/* sign a document using  RSA-PSS with SHA256 and maximal salt length
 */
try
        /* read Alice private key */
        rsaKeyPEM = Read("alice_private_key.pem")
        rsaKey = rsa_import_pem(rsaKeyPEM)

        /* hash file content */
        ctx = SHA256Init()
        cFileContent = Read ("document.txt")
        SHA256Update(ctx, cFileContent)
        digest = SHA256Final(ctx)

        /* perform PSS signing */
        cSignature = rsa_signhash_pss(rsaKey,digest)

        /* store the signature */
        Write("document.txt.sig", cSignature)

catch
        See "Unexpected error occured: " + cCatchError + nl
done

Popularity 1/10 Helpfulness 1/10 Language whatever

Source: ring-lang.github.io

Tags: hash ring rsa sign whatever

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Contributed on May 19 2022

Joker

0 Answers Avg Quality 2/10

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ring sign data with RSA PSS

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rsa_sign_pss(pRsaKey,cData,nHashAlgorithm[,nSaltLength]) ---> return a string containing RSA PSS signature
        nHashAlgorithm indicates the hash algorithm to use for hashing and PSS padding.
        nSaltLength indicates the length of PSS salt to use. If ommited, then maximum salt length is used.
        nSaltLength can have the special values -1 and -2: -1 indicates that salt length is equal to hash size
        and -2 indicates that maximum salt length is used.
        Possible values for nHashAlgorithm argument are:
         - $OSSL_HASH_MD5 which is equal to 0
         - $OSSL_HASH_SHA1 which is equal to 1
         - $OSSL_HASH_SHA256 which is equal to 2
         - $OSSL_HASH_SHA384 which is equal to 3
         - $OSSL_HASH_SHA512 which is equal to 4

Popularity 3/10 Helpfulness 1/10 Language whatever

Source: ring-lang.github.io

Tags: ring whatever sign rsa

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Contributed on May 19 2022

Joker

0 Answers Avg Quality 2/10

ring sign data with RSA PSS

Comment

/* sign a document using  RSA-PSS with SHA256 and maximal salt length
 */
try
        /* read Alice private key */
        rsaKeyPEM = Read("alice_private_key.pem")
        rsaKey = rsa_import_pem(rsaKeyPEM)

        /* read file content */
        cFileContent = Read ("document.txt")

        /* perform PSS signing */
        cSignature = rsa_sign_pss(rsaKey,cFileContent,$OSSL_HASH_SHA256)

        /* store the signature */
        Write("document.txt.sig", cSignature)

catch
        See "Unexpected error occured: " + cCatchError + nl
done

Popularity 2/10 Helpfulness 1/10 Language whatever

Source: ring-lang.github.io

Tags: rsa whatever ring sign

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Contributed on May 19 2022

Joker

0 Answers Avg Quality 2/10

ring sign a hash value with RSA PSS

Comment

rsa_signhash_pss(pRsaKey,cHashValue[,nSaltLength]) ---> return a string containing RSA PSS signature
        nSaltLength indicates the length of PSS salt to use. If ommited, then maximum salt length is used.
        nSaltLength can have the special values -1 and -2: -1 indicates that salt length is equal to hash size
        and -2 indicates that maximum salt length is used.

Popularity 2/10 Helpfulness 1/10 Language whatever

Source: ring-lang.github.io

Tags: whatever sign ring hash rsa

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Contributed on May 19 2022

Joker

0 Answers Avg Quality 2/10

ring verify the RSA-PSS signature of a hash value

Comment

rsa_verifyhash_pss(pRsaKey,cHashValue,cSignature[,nSaltLength]) ---> returns 1 if signature is valid and 0 otherwise
        nSaltLength indicates the length of PSS salt to use. If ommited, then maximum salt length is used.
        nSaltLength can have the special values -1 and -2: -1 indicates that salt length is equal to hash size
        and -2 indicates that maximum salt length is used.

Popularity 1/10 Helpfulness 1/10 Language whatever

Source: ring-lang.github.io

Tags: verify hash ring whatever signature

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Contributed on May 19 2022

Joker

0 Answers Avg Quality 2/10

ring verify the RSA-PSS signature of a hash value

Comment

/* verify a document signature using RSA-PSS with SHA256 and maximal salt length
 */
try
        /* read Alice public key */
        rsaPublicKeyPEM = Read("alice_public_key.pem")
        rsaPublicKey = rsa_import_pem(rsaPublicKeyPEM)

        /* hash file content */
        ctx = SHA256Init()
        cFileContent = Read ("document.txt")
        SHA256Update(ctx, cFileContent)
        digest = SHA256Final(ctx)

        /* read file signature */
        cSignature = Read ("document.txt.sig")

        /* perform PSS verification */
        if rsa_verifyhash_pss(rsaPublicKey,digest,cSignature)
                See "file signature is valid" + nl
        else
                See "file signature is INVALID" + nl
        ok

catch
        See "Unexpected error occured: " + cCatchError + nl
done

Popularity 2/10 Helpfulness 1/10 Language whatever

Source: ring-lang.github.io

Tags: ring hash verify signature whatever

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Contributed on May 19 2022

Joker

0 Answers Avg Quality 2/10

ring sign a hash value with RSA PSS

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ring sign a hash value with RSA PSS

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ring sign data with RSA PSS

ring sign data with RSA PSS

ring sign a hash value with RSA PSS

ring verify the RSA-PSS signature of a hash value

ring verify the RSA-PSS signature of a hash value

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