SecureString CkPython Reference Documentation
CkSecureString
Current Version: 11.0.0
A string class that stores the characters in memory in 256-bit AES CBC encrypted form. The encryption key will be a randomly-generated key.
Object Creation
obj = chilkat.CkSecureString()
Properties
DebugLogFilePath
# ckStr is a CkString
secureString.get_DebugLogFilePath(ckStr);
strVal = secureString.debugLogFilePath();
secureString.put_DebugLogFilePath(strVal);
If set to a file path, this property logs the LastErrorText of each Chilkat method or property call to the specified file. This logging helps identify the context and history of Chilkat calls leading up to any crash or hang, aiding in debugging.
Enabling the VerboseLogging property provides more detailed information. This property is mainly used for debugging rare instances where a Chilkat method call causes a hang or crash, which should generally not happen.
Possible causes of hangs include:
- A timeout property set to 0, indicating an infinite timeout.
- A hang occurring within an event callback in the application code.
- An internal bug in the Chilkat code causing the hang.
LastErrorHtml
# ckStr is a CkString
secureString.get_LastErrorHtml(ckStr);
strVal = secureString.lastErrorHtml();
Provides HTML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.
topLastErrorText
# ckStr is a CkString
secureString.get_LastErrorText(ckStr);
strVal = secureString.lastErrorText();
Provides plain text information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.
LastErrorXml
# ckStr is a CkString
secureString.get_LastErrorXml(ckStr);
strVal = secureString.lastErrorXml();
Provides XML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.
topLastMethodSuccess
boolVal = secureString.get_LastMethodSuccess();
secureString.put_LastMethodSuccess(boolVal);
Indicates the success or failure of the most recent method call: True means success, False means failure. This property remains unchanged by property setters or getters. This method is present to address challenges in checking for null or Nothing returns in certain programming languages.
MaintainHash
# ckStr is a CkString
secureString.get_MaintainHash(ckStr);
strVal = secureString.maintainHash();
secureString.put_MaintainHash(strVal);
If set to the name of a hash algorithm, then a hash of the current string value is maintained. This allows for the hash to be verified via the VerifyHash method. Possible hash algorithm names are "sha1", "sha256", "sha384", "sha512", "md5", "md2", "ripemd160", "ripemd128","ripemd256", and "ripemd320".
topReadOnly
boolVal = secureString.get_ReadOnly();
secureString.put_ReadOnly(boolVal);
Can be set to True to make this secure string read-only (cannot be modified).
VerboseLogging
boolVal = secureString.get_VerboseLogging();
secureString.put_VerboseLogging(boolVal);
If set to True, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is False. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.
Version
# ckStr is a CkString
secureString.get_Version(ckStr);
strVal = secureString.version();
Methods
Access
status = secureString.Access(outStr);
retStr = secureString.access();
Append
status = secureString.Append(str);
Appends a clear-text string to this secure string. The in-memory data will be decrypted, the string will be appended, and then it will be re-encrypted. Can return False if the string has been marked as read-only via the ReadOnly property.
Returns True for success, False for failure.
topAppendSb
Appends a clear-text string contained in a StringBuilder to this secure string. The in-memory data will be decrypted, the string will be appended, and then it will be re-encrypted. Can return False if the string has been marked as read-only via the ReadOnly property.
Returns True for success, False for failure.
topAppendSecure
retBool = secureString.AppendSecure(secStr);
Appends the contents of a secure string to this secure string. The in-memory data will be decrypted, the secure string will be appended, and then it will be re-encrypted. Can return False if this string has been marked as read-only via the ReadOnly property.
HashVal
# outStr is a CkString (output)
status = secureString.HashVal(encoding, outStr);
retStr = secureString.hashVal(encoding);
Returns the hash value for the current value of this secure string. The encoding specifies the encoding to be used. It can be any of the binary encoding algorithms, such as "base64", "hex", and many more listed at Chilkat Binary Encodings
Returns True for success, False for failure.
topLoadFile
# charset is a string
status = secureString.LoadFile(path, charset);
Loads the contents of a file into this secure string. The current contents of this object are replaced with the new text from the file.
Returns True for success, False for failure.
topSecStrEquals
status = secureString.SecStrEquals(secStr);
Returns True if the secStr equals the contents of this secure string.
Returns True for success, False for failure.
topVerifyHash
# encoding is a string
status = secureString.VerifyHash(hashVal, encoding);
Verifies the hashVal against the hash value stored for the current value of this secure string. The MaintainHash property must've previously been set for this secure string to maintain an internal hash. The encoding specifies the encoding of the hashVal. It can be any of the binary encoding algorithms, such as "base64", "hex", and many more listed at Chilkat Binary Encodings
Returns True for success, False for failure.
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