SecureString Tcl Reference Documentation
SecureString
Current Version: 10.1.0
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
set mySecureString [new CkSecureString]
Properties
LastMethodSuccess
set boolVal [CkSecureString_get_LastMethodSuccess $mySecureString]
CkSecureString_put_LastMethodSuccess $mySecureString $boolVal
Indicate whether the last method call succeeded or failed. A value of 1 indicates success, a value of 0 indicates failure. This property is automatically set for method calls. It is not modified by property accesses. The property is automatically set to indicate success for the following types of method calls:
- Any method that returns a string.
- Any method returning a Chilkat object, binary bytes, or a date/time.
- Any method returning a standard boolean status value where success = 1 and failure = 0.
- Any method returning an integer where failure is defined by a return value less than zero.
Note: Methods that do not fit the above requirements will always set this property equal to 1. For example, a method that returns no value (such as a "void" in C++) will technically always succeed.
topMaintainHash
# ckStr is a CkString
CkSecureString_get_MaintainHash $mySecureString $ckStr
set strVal [CkSecureString_get_maintainHash $mySecureString]
CkSecureString_put_MaintainHash $mySecureString $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
set boolVal [CkSecureString_get_ReadOnly $mySecureString]
CkSecureString_put_ReadOnly $mySecureString $boolVal
Can be set to 1 to make this secure string read-only (cannot be modified).
topUtf8
set boolVal [CkSecureString_get_Utf8 $mySecureString]
CkSecureString_put_Utf8 $mySecureString $boolVal
When set to 1, all "const char *" arguments are interpreted as utf-8 strings. If set to 0 (the default), then "const char *" arguments are interpreted as ANSI strings. Also, when set to 1, and Chilkat method returning a "const char *" is returning the utf-8 representation. If set to 0, all "const char *" return values are ANSI strings.
topMethods
Access
set status [CkSecureString_Access $outStr]
set retStr [CkSecureString_access $mySecureString]
Append
set status [CkSecureString_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 0 if the string has been marked as read-only via the ReadOnly property.
Returns 1 for success, 0 for failure.
topAppendSb
set status [CkSecureString_AppendSb $sb]
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 0 if the string has been marked as read-only via the ReadOnly property.
Returns 1 for success, 0 for failure.
topAppendSecure
set retBool [CkSecureString_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 0 if this string has been marked as read-only via the ReadOnly property.
topHashVal
# outStr is a CkString (output)
set status [CkSecureString_HashVal $encoding $outStr]
set retStr [CkSecureString_hashVal $mySecureString $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 1 for success, 0 for failure.
topLoadFile
# charset is a string
set status [CkSecureString_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 1 for success, 0 for failure.
topSecStrEquals
set status [CkSecureString_SecStrEquals $secStr]
Returns 1 if the secStr equals the contents of this secure string.
Returns 1 for success, 0 for failure.
topVerifyHash
# encoding is a string
set status [CkSecureString_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 1 for success, 0 for failure.
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