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(Tcl) RSA Encrypt and OpenSSL DecryptDemonstrates how to use Chilkat to RSA encrypt, and then use OpenSSL to decrypt.
load ./chilkat.dll # This requires the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. set rsa [new_CkRsa] set success [CkRsa_GenerateKey $rsa 2048] # privKey is a CkPrivateKey set privKey [CkRsa_ExportPrivateKeyObj $rsa] set success [CkPrivateKey_SavePkcs8PemFile $privKey "qa_output/privKey.pem"] delete_CkPrivateKey $privKey CkRsa_put_EncodingMode $rsa "base64" set plainText "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz01234567890" set bUsePrivateKey 0 set encryptedStr [CkRsa_encryptStringENC $rsa $plainText $bUsePrivateKey] set bd [new_CkBinData] CkBinData_AppendEncoded $bd $encryptedStr "base64" set success [CkBinData_WriteFile $bd "qa_output/enc.dat"] # The OpenSSL command to decrypt is: # openssl pkeyutl -in enc.dat -inkey privKey.pem -keyform PEM -pkeyopt rsa_padding_mode:pkcs1 -decrypt puts "OK" delete_CkRsa $rsa delete_CkBinData $bd |
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