diff -r ece3df019add -r cf642210ecb7 crypto/weakcryptospi/inc/spi/cryptoasymmetriccipherapi.h
--- a/crypto/weakcryptospi/inc/spi/cryptoasymmetriccipherapi.h	Tue Nov 24 09:06:03 2009 +0200
+++ b/crypto/weakcryptospi/inc/spi/cryptoasymmetriccipherapi.h	Thu Dec 17 09:28:34 2009 +0200
@@ -52,30 +52,44 @@
 		/**
 		Set the public key of this cipher. Reset() is called to reinitialise the cipher.
 		@param aKey  the public key.
+        @leave KErrArgument if aKey is not of the expected type.
+        @leave KErrNotSupported if the key is not of valid length.
+		@leave ...	Any of the crypto error codes defined in 
+  					cryptospi_errs.h or any of the system-wide error codes.
 		*/
 		IMPORT_C void SetKeyL(const CKey& aKey);
 
 		/**
 		Set the crypto mode of this cipher. Reset() is called to reinitialise the cipher.
-		@param aCryptoMode crypto mode
+		@param aCryptoMode crypto mode.
+		@leave KErrNotSupported if the specified mode is not supported.
+		@leave ...	Any of the crypto error codes defined in 
+  					cryptospi_errs.h or any of the system-wide error codes.
 		*/
 		IMPORT_C void SetCryptoModeL(TUid aCryptoMode);
 
 		/**
 		Set padding Mode of this cipher. Reset() is called to reinitialise the cipher.
-		@param aPaddingMode padding mode
+		@param aPaddingMode padding mode.
+		@leave KErrNotSupported if the specified mode is not supported.
+		@leave ...	Any of the crypto error codes defined in 
+  					cryptospi_errs.h or any of the system-wide error codes.
 		*/
 		IMPORT_C void SetPaddingModeL(TUid aPaddingMode);
 
 		/**
 		Gets the maximum size of input accepted by this object.	
 		@return	The maximum input length allowed in bytes.
+		@leave ...	Any of the crypto error codes defined in 
+  					cryptospi_errs.h or any of the system-wide error codes.
 		*/	 
 		IMPORT_C TInt GetMaximumInputLengthL();
 
 		/**
 		Gets the maximum size of output that can be generated by this object.
 		@return	The maximum output length in bytes.
+		@leave ...	Any of the crypto error codes defined in 
+  					cryptospi_errs.h or any of the system-wide error codes.
 		 */	 
 		IMPORT_C TInt GetMaximumOutputLengthL();
 		
@@ -113,6 +127,8 @@
 		Encrypts or decrypts aInput and appends the result to aOutput.
 		@param aInput	The input data to be processed.
 		@param aOutput	The resulting processed data appended to aOutput.
+		@leave ...	Any of the crypto error codes defined in 
+  					cryptospi_errs.h or any of the system-wide error codes.
 		*/
 		IMPORT_C void ProcessL(const TDesC8& aInput, TDes8& aOutput);
 
@@ -150,6 +166,8 @@
 		@param aInput		The input data to be processed.
 		@param aOutput	The resulting processed data appended to aOutput.
 		@param aRequestStatus
+		@leave ...	Any of the crypto error codes defined in 
+  					cryptospi_errs.h or any of the system-wide error codes.
 		*/
 		IMPORT_C void ProcessL(const TDesC8& aInput, TDes8& aOutput, TRequestStatus& aRequestStatus);