Index: src/OFASN1Boolean.m
==================================================================
--- src/OFASN1Boolean.m
+++ src/OFASN1Boolean.m
@@ -17,10 +17,11 @@
 
 #include "config.h"
 
 #import "OFASN1Boolean.h"
 #import "OFData.h"
+#import "OFString.h"
 
 #import "OFInvalidArgumentException.h"
 #import "OFInvalidFormatException.h"
 
 @implementation OFASN1Boolean
@@ -57,6 +58,13 @@
 		@throw e;
 	}
 
 	return self;
 }
+
+- (OFString *)description
+{
+	return (_booleanValue
+	    ? @"<OFASN1Boolean: true>"
+	    : @"<OFASN1Boolean: false>");
+}
 @end

Index: src/OFASN1IA5String.m
==================================================================
--- src/OFASN1IA5String.m
+++ src/OFASN1IA5String.m
@@ -63,6 +63,12 @@
 
 - (OFString *)stringValue
 {
 	return [self IA5StringValue];
 }
+
+- (OFString *)description
+{
+	return [OFString stringWithFormat: @"<OFASN1IA5String: %@>",
+					   _IA5StringValue];
+}
 @end

Index: src/OFASN1Integer.m
==================================================================
--- src/OFASN1Integer.m
+++ src/OFASN1Integer.m
@@ -17,10 +17,11 @@
 
 #include "config.h"
 
 #import "OFASN1Integer.h"
 #import "OFData.h"
+#import "OFString.h"
 
 #import "OFInvalidArgumentException.h"
 #import "OFInvalidFormatException.h"
 #import "OFOutOfRangeException.h"
 
@@ -71,6 +72,12 @@
 		@throw e;
 	}
 
 	return self;
 }
+
+- (OFString *)description
+{
+	return [OFString stringWithFormat: @"<OFASN1Integer: %jd>",
+					   _integerValue];
+}
 @end

Index: src/OFASN1Null.m
==================================================================
--- src/OFASN1Null.m
+++ src/OFASN1Null.m
@@ -17,10 +17,11 @@
 
 #include "config.h"
 
 #import "OFASN1Null.h"
 #import "OFData.h"
+#import "OFString.h"
 
 #import "OFInvalidArgumentException.h"
 #import "OFInvalidFormatException.h"
 
 @implementation OFASN1Null
@@ -46,6 +47,11 @@
 		@throw e;
 	}
 
 	return self;
 }
+
+- (OFString *)description
+{
+	return @"<OFASN1Null>";
+}
 @end

Index: src/OFASN1OctetString.m
==================================================================
--- src/OFASN1OctetString.m
+++ src/OFASN1OctetString.m
@@ -17,10 +17,11 @@
 
 #include "config.h"
 
 #import "OFASN1OctetString.h"
 #import "OFData.h"
+#import "OFString.h"
 
 #import "OFInvalidArgumentException.h"
 
 @implementation OFASN1OctetString
 - (instancetype)initWithTagClass: (of_asn1_tag_class_t)tagClass
@@ -48,6 +49,12 @@
 
 - (OFData *)octetStringValue
 {
 	return _DEREncodedContents;
 }
+
+- (OFString *)description
+{
+	return [OFString stringWithFormat: @"<OFASN1OctetString: %@>",
+					   _DEREncodedContents];
+}
 @end

Index: src/OFASN1UTF8String.m
==================================================================
--- src/OFASN1UTF8String.m
+++ src/OFASN1UTF8String.m
@@ -62,6 +62,12 @@
 
 - (OFString *)stringValue
 {
 	return [self UTF8StringValue];
 }
+
+- (OFString *)description
+{
+	return [OFString stringWithFormat: @"<OFASN1UTF8String: %@>",
+					   _UTF8StringValue];
+}
 @end

Index: src/OFASN1Value.m
==================================================================
--- src/OFASN1Value.m
+++ src/OFASN1Value.m
@@ -17,10 +17,11 @@
 
 #include "config.h"
 
 #import "OFASN1Value.h"
 #import "OFData.h"
+#import "OFString.h"
 
 #import "OFInvalidFormatException.h"
 
 @implementation OFASN1Value
 @synthesize tagClass = _tagClass, tagNumber = _tagNumber;
@@ -113,6 +114,19 @@
 
 - (id)copy
 {
 	return [self retain];
 }
+
+- (OFString *)description
+{
+	return [OFString stringWithFormat:
+	    @"<OFASN1Value:\n"
+	    @"\tTag class = %x\n"
+	    @"\tTag number = %x\n"
+	    @"\tConstructed = %u\n"
+	    @"\tDER-encoded contents = %@\n"
+	    @">",
+	    _tagClass, _tagNumber, _constructed,
+	    [_DEREncodedContents description]];
+}
 @end