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r=Math.min(e.length,t.length),i=0;i<r;++i)n+=e[i]^t[i];return n}(e,this._authTag))throw new Error("Unsupported state or unable to authenticate data");this._authTag=e,this._cipher.scrub()},h.prototype.getAuthTag=function(){if(this._decrypt||!i.isBuffer(this._authTag))throw new Error("Attempting to get auth tag in unsupported state");return this._authTag},h.prototype.setAuthTag=function(e){if(!this._decrypt)throw new Error("Attempting to set auth tag in unsupported state");this._authTag=e},h.prototype.setAAD=function(e){if(this._called)throw new Error("Attempting to set AAD in unsupported state");this._ghash.update(e),this._alen+=e.length},e.exports=h},8947:function(e,t,n){var r=n("bac2"),i=n("82f0"),o=n("8707").Buffer,a=n("09f5"),s=n("6430"),u=n("39f5"),c=n("ae84");function h(e,t,n){s.call(this),this._cache=new l,this._cipher=new u.AES(t),this._prev=o.from(n),this._mode=e,this._autopadding=!0}n("3fb5")(h,s),h.prototype._update=function(e){var t,n;this._cache.add(e);for(var 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