// 
// Decompiled by Procyon v0.6.0
// 

package com.google.crypto.tink.prf;

import java.security.GeneralSecurityException;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import com.google.crypto.tink.Parameters;
import com.google.crypto.tink.Key;
import javax.annotation.Nullable;
import com.google.crypto.tink.AccessesPartialKey;
import com.google.errorprone.annotations.RestrictedApi;
import com.google.crypto.tink.util.SecretBytes;
import com.google.errorprone.annotations.Immutable;

@Immutable
public final class HkdfPrfKey extends PrfKey
{
    private final HkdfPrfParameters parameters;
    private final SecretBytes keyBytes;
    
    private HkdfPrfKey(final HkdfPrfParameters parameters, final SecretBytes keyBytes) {
        this.parameters = parameters;
        this.keyBytes = keyBytes;
    }
    
    @RestrictedApi(explanation = "Accessing parts of keys can produce unexpected incompatibilities, annotate the function with @AccessesPartialKey", link = "https://developers.google.com/tink/design/access_control#accessing_partial_keys", allowedOnPath = ".*Test\\.java", allowlistAnnotations = { AccessesPartialKey.class })
    public static Builder builder() {
        return new Builder();
    }
    
    @RestrictedApi(explanation = "Accessing parts of keys can produce unexpected incompatibilities, annotate the function with @AccessesPartialKey", link = "https://developers.google.com/tink/design/access_control#accessing_partial_keys", allowedOnPath = ".*Test\\.java", allowlistAnnotations = { AccessesPartialKey.class })
    public SecretBytes getKeyBytes() {
        return this.keyBytes;
    }
    
    @Override
    public HkdfPrfParameters getParameters() {
        return this.parameters;
    }
    
    @Nullable
    @Override
    public Integer getIdRequirementOrNull() {
        return null;
    }
    
    @Override
    public boolean equalsKey(final Key o) {
        if (!(o instanceof HkdfPrfKey)) {
            return false;
        }
        final HkdfPrfKey that = (HkdfPrfKey)o;
        return that.parameters.equals(this.parameters) && that.keyBytes.equalsSecretBytes(this.keyBytes);
    }
    
    public static final class Builder
    {
        @Nullable
        private HkdfPrfParameters parameters;
        @Nullable
        private SecretBytes keyBytes;
        
        private Builder() {
            this.parameters = null;
            this.keyBytes = null;
        }
        
        @CanIgnoreReturnValue
        public Builder setParameters(final HkdfPrfParameters parameters) {
            this.parameters = parameters;
            return this;
        }
        
        @CanIgnoreReturnValue
        public Builder setKeyBytes(final SecretBytes keyBytes) {
            this.keyBytes = keyBytes;
            return this;
        }
        
        public HkdfPrfKey build() throws GeneralSecurityException {
            if (this.parameters == null || this.keyBytes == null) {
                throw new GeneralSecurityException("Cannot build without parameters and/or key material");
            }
            if (this.parameters.getKeySizeBytes() != this.keyBytes.size()) {
                throw new GeneralSecurityException("Key size mismatch");
            }
            return new HkdfPrfKey(this.parameters, this.keyBytes, null);
        }
    }
}