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(Tcl) RSA Sign using Base64 Private KeySigns a string using a non-encrypted RSA private key in base64 encoding. Returns the RSA signature as a base64 string. Note: This example requires Chilkat v11.0.0 or greater.
load ./chilkat.dll set success 0 # This requires the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. set privKey [new_CkPrivateKey] set sbPem [new_CkStringBuilder] CkStringBuilder_AppendLine $sbPem "-----BEGIN RSA PRIVATE KEY-----" 1 CkStringBuilder_AppendLine $sbPem "MIIC .... j5A==" 1 CkStringBuilder_AppendLine $sbPem "-----END RSA PRIVATE KEY-----" 1 set success [CkPrivateKey_LoadPem $privKey [CkStringBuilder_getAsString $sbPem]] if {$success == 0} then { puts [CkPrivateKey_lastErrorText $privKey] delete_CkPrivateKey $privKey delete_CkStringBuilder $sbPem exit } set rsa [new_CkRsa] set success [CkRsa_UsePrivateKey $rsa $privKey] if {$success == 0} then { puts [CkRsa_lastErrorText $rsa] delete_CkPrivateKey $privKey delete_CkStringBuilder $sbPem delete_CkRsa $rsa exit } set bd [new_CkBinData] CkBinData_AppendString $bd "12345678" "utf-8" set success [CkRsa_SignRawBd $rsa $bd] if {$success == 0} then { puts [CkRsa_lastErrorText $rsa] delete_CkPrivateKey $privKey delete_CkStringBuilder $sbPem delete_CkRsa $rsa delete_CkBinData $bd exit } # Get the base64 RSA signature. puts [CkBinData_getEncoded $bd base64] set success [CkRsa_VerifyRawBd $rsa $bd] if {$success == 0} then { puts [CkRsa_lastErrorText $rsa] delete_CkPrivateKey $privKey delete_CkStringBuilder $sbPem delete_CkRsa $rsa delete_CkBinData $bd exit } set strOriginal [CkBinData_getString $bd "utf-8"] puts "$strOriginal" delete_CkPrivateKey $privKey delete_CkStringBuilder $sbPem delete_CkRsa $rsa delete_CkBinData $bd |
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