Telerik.Pdf.Security.SecurityManager
Implements Adobe's standard security handler. A security handler is a software module that implements various aspects of the encryption process.
Inheritance Hierarchy
- System.Object
- Telerik.Pdf.Security.SecurityManager
Properties
OwnerEntry Byte[]
Access to the raw owner entry byte array.
Remarks
Required for testing purposes;
UserEntry Byte[]
Access to the raw user entry byte array.
Remarks
Required for testing purposes;
Methods
CheckOwnerPassword
Checks the owner password.
Returns
System.Boolean
CheckUserPassword
Determines if the passed password matches the user password used to initialise this security manager.
Remarks
Used for testing purposes only. Corresponds to algorithm 3.5 in the PDF 1.3 specification.
Returns
System.Boolean True if the password is correct.
CheckUserPassword
Performs the actual checking of the user password.
Returns
System.Boolean
CompareArray
Compares two byte arrays and returns true if they are equal.
Returns
System.Boolean
ComputeEncryptionKey31
Computes an encryption key that is used to encrypt string and stream data in the PDF document.
Remarks
Corresponds to algorithm 3.1 in section 3.5 of the PDF specficiation.
Returns
System.Byte[]
ComputeEncryptionKey32
Computes an encryption key that is used to encrypt string and stream data in the PDF document.
Remarks
Corresponds to algorithm 3.2 in section 3.5 of the PDF specficiation.
Returns
System.Byte[]
CreateMasterKey
Computes the master key that is used to encrypt string and stream data in the PDF document.
Parameters
options Telerik.Pdf.Security.SecurityOptions
The user supplied PDF options that provides access to the passwords and the access permissions.
fileId Telerik.Pdf.FileIdentifier
The PDF document's file identifier (see section 8.3 of PDF specification).
Returns
System.Void
CreateOwnerEntry
Computes the O(owner) value in the encryption dictionary.
Remarks
Corresponds to algorithm 3.3 on page 69 of the PDF specficiation.
Parameters
options Telerik.Pdf.Security.SecurityOptions
The user supplied PDF options that provides access to the passwords.
Returns
System.Void
CreateUserEntry
Computes the U(user) value in the encryption dictionary.
Remarks
Corresponds to algorithm 3.4 on page 70 of the PDF specficiation.
Parameters
options Telerik.Pdf.Security.SecurityOptions
The user supplied PDF options that provides access to the passwords.
Returns
System.Void
Encrypt
Encrypts the passed byte array using the ARC4 cipher.
Returns
System.Byte[]
PadPassword
Pads or truncates a password string to exactly 32-bytes.
Remarks
Corresponds to step 1 of algorithm 3.2 on page 69 of the PDF 1.3 specficiation.
Parameters
password System.String
The password to pad or truncate.
Returns
System.Byte[] A byte array of length 32 bytes containing the padded or truncated password.