39 lines
1.3 KiB
C
39 lines
1.3 KiB
C
/*******************************************************************************
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* Ledger Blue - Bitcoin Wallet
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* (c) 2016 Ledger
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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********************************************************************************/
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#include "btchip_internal.h"
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void sbSet(secu8 *target, unsigned char source) {
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*target = (((unsigned char)~source) << 8) + source;
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}
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void sbCheck(secu8 source) {
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if (((source >> 8) & 0xff) != (unsigned char)(~(source & 0xff))) {
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reset();
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}
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}
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void ssSet(secu16 *target, unsigned short source) {
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*target = (((unsigned long int)((unsigned short)~source)) << 16) + source;
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}
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void ssCheck(secu16 source) {
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if (((source >> 16) & 0xffff) != (unsigned short)(~(source & 0xffff))) {
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reset();
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}
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}
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