diff options
Diffstat (limited to 'libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/DERVisibleString.java')
-rw-r--r-- | libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/DERVisibleString.java | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/DERVisibleString.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/DERVisibleString.java new file mode 100644 index 000000000..bf88ec969 --- /dev/null +++ b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/DERVisibleString.java @@ -0,0 +1,135 @@ +package org.spongycastle.asn1; + +import java.io.IOException; + +import org.spongycastle.util.Arrays; +import org.spongycastle.util.Strings; + +/** + * DER VisibleString object. + */ +public class DERVisibleString + extends ASN1Primitive + implements ASN1String +{ + private byte[] string; + + /** + * return a Visible String from the passed in object. + * + * @exception IllegalArgumentException if the object cannot be converted. + */ + public static DERVisibleString getInstance( + Object obj) + { + if (obj == null || obj instanceof DERVisibleString) + { + return (DERVisibleString)obj; + } + + if (obj instanceof byte[]) + { + try + { + return (DERVisibleString)fromByteArray((byte[])obj); + } + catch (Exception e) + { + throw new IllegalArgumentException("encoding error in getInstance: " + e.toString()); + } + } + + throw new IllegalArgumentException("illegal object in getInstance: " + obj.getClass().getName()); + } + + /** + * return a Visible String from a tagged object. + * + * @param obj the tagged object holding the object we want + * @param explicit true if the object is meant to be explicitly + * tagged false otherwise. + * @exception IllegalArgumentException if the tagged object cannot + * be converted. + */ + public static DERVisibleString getInstance( + ASN1TaggedObject obj, + boolean explicit) + { + ASN1Primitive o = obj.getObject(); + + if (explicit || o instanceof DERVisibleString) + { + return getInstance(o); + } + else + { + return new DERVisibleString(ASN1OctetString.getInstance(o).getOctets()); + } + } + + /** + * basic constructor - byte encoded string. + */ + DERVisibleString( + byte[] string) + { + this.string = string; + } + + /** + * basic constructor + */ + public DERVisibleString( + String string) + { + this.string = Strings.toByteArray(string); + } + + public String getString() + { + return Strings.fromByteArray(string); + } + + public String toString() + { + return getString(); + } + + public byte[] getOctets() + { + return Arrays.clone(string); + } + + boolean isConstructed() + { + return false; + } + + int encodedLength() + { + return 1 + StreamUtil.calculateBodyLength(string.length) + string.length; + } + + void encode( + ASN1OutputStream out) + throws IOException + { + out.writeEncoded(BERTags.VISIBLE_STRING, this.string); + } + + boolean asn1Equals( + ASN1Primitive o) + { + if (!(o instanceof DERVisibleString)) + { + return false; + } + + return Arrays.areEqual(string, ((DERVisibleString)o).string); + } + + public int hashCode() + { + return Arrays.hashCode(string); + } +} |