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Elftosb is used to create a digitaly signed "secure boot" file. This sb file can be booted by the first stage boot loader found in Freescale i.MX23 and i.MX28 application processors. Copyright (c) 2004-2010 Freescale Semiconductor, Inc. @ text @/* * File: AESKey.cpp * * Copyright (c) Freescale Semiconductor, Inc. All rights reserved. * See included license file for license details. */ #include "AESKey.h" #include #include "smart_ptr.h" #include "HexValues.h" #include //! The data from the stream is expected to be hex encoded. Each two characters //! from the stream encode a single result byte. All non-hexadecimal characters //! are ignored, including newlines. Every two hexadecimal characters form //! an encoded byte. This is true even if the two characters representing the //! upper and lower nibbles are separated by whitespace or other characters. //! //! \post The stream read head is left pointing just after the last encoded byte. //! //! \param stream Input stream to read from. //! \param bytes Number of encoded bytes to read. This is the number of \e //! result bytes, not the count of bytes to read from the stream. //! \param[out] buffer Pointer to the buffer where decoded data is written. //! //! \exception std::runtime_error This exception will be thrown if less //! data than required is available from \a stream, or if some other //! error occurs while reading from \a stream. void AESKeyBase::_readFromStream(std::istream & stream, unsigned bytes, uint8_t * buffer) { char temp[2]; char c; char n = 0; while (bytes) { if (stream.get(c).fail()) { throw std::runtime_error("not enough data in stream"); } if (isHexDigit(c)) { temp[n++] = c; if (n == 2) { *buffer++ = hexByteToInt(temp); bytes--; n = 0; } } } } //! Key data is written to \a stream as a sequence of hex encoded octets, each two //! characters long. No spaces or newlines are inserted between the encoded octets //! or at the end of the sequence. //! //! \exception std::runtime_error Thrown if the \a stream reports an error while //! writing the key data. void AESKeyBase::_writeToStream(std::ostream & stream, unsigned bytes, const uint8_t * buffer) { const char hexChars[] = "0123456789ABCDEF"; while (bytes--) { uint8_t thisByte = *buffer++; char byteString[2]; byteString[0] = hexChars[(thisByte & 0xf0) >> 4]; byteString[1] = hexChars[thisByte & 0x0f]; if (stream.write(byteString, 2).bad()) { throw std::runtime_error("error while writing to stream"); } } } @ 1.1.4.1 log @file AESKey.cpp was added on branch yamt-pagecache on 2013-01-16 05:27:44 +0000 @ text @d1 78 @ 1.1.4.2 log @sync with (a bit old) head @ text @a0 78 /* * File: AESKey.cpp * * Copyright (c) Freescale Semiconductor, Inc. All rights reserved. * See included license file for license details. */ #include "AESKey.h" #include #include "smart_ptr.h" #include "HexValues.h" #include //! The data from the stream is expected to be hex encoded. Each two characters //! from the stream encode a single result byte. All non-hexadecimal characters //! are ignored, including newlines. Every two hexadecimal characters form //! an encoded byte. This is true even if the two characters representing the //! upper and lower nibbles are separated by whitespace or other characters. //! //! \post The stream read head is left pointing just after the last encoded byte. //! //! \param stream Input stream to read from. //! \param bytes Number of encoded bytes to read. This is the number of \e //! result bytes, not the count of bytes to read from the stream. //! \param[out] buffer Pointer to the buffer where decoded data is written. //! //! \exception std::runtime_error This exception will be thrown if less //! data than required is available from \a stream, or if some other //! error occurs while reading from \a stream. void AESKeyBase::_readFromStream(std::istream & stream, unsigned bytes, uint8_t * buffer) { char temp[2]; char c; char n = 0; while (bytes) { if (stream.get(c).fail()) { throw std::runtime_error("not enough data in stream"); } if (isHexDigit(c)) { temp[n++] = c; if (n == 2) { *buffer++ = hexByteToInt(temp); bytes--; n = 0; } } } } //! Key data is written to \a stream as a sequence of hex encoded octets, each two //! characters long. No spaces or newlines are inserted between the encoded octets //! or at the end of the sequence. //! //! \exception std::runtime_error Thrown if the \a stream reports an error while //! writing the key data. void AESKeyBase::_writeToStream(std::ostream & stream, unsigned bytes, const uint8_t * buffer) { const char hexChars[] = "0123456789ABCDEF"; while (bytes--) { uint8_t thisByte = *buffer++; char byteString[2]; byteString[0] = hexChars[(thisByte & 0xf0) >> 4]; byteString[1] = hexChars[thisByte & 0x0f]; if (stream.write(byteString, 2).bad()) { throw std::runtime_error("error while writing to stream"); } } } @ 1.1.2.1 log @file AESKey.cpp was added on branch tls-maxphys on 2012-11-15 19:49:14 +0000 @ text @d1 78 @ 1.1.2.2 log @Add elftosb tools to evbarm userland and toolchain. Elftosb is used to create a digitaly signed "secure boot" file. This sb file can be booted by the first stage boot loader found in Freescale i.MX23 and i.MX28 application processors. Copyright (c) 2004-2010 Freescale Semiconductor, Inc. @ text @a0 78 /* * File: AESKey.cpp * * Copyright (c) Freescale Semiconductor, Inc. All rights reserved. * See included license file for license details. */ #include "AESKey.h" #include #include "smart_ptr.h" #include "HexValues.h" #include //! The data from the stream is expected to be hex encoded. Each two characters //! from the stream encode a single result byte. All non-hexadecimal characters //! are ignored, including newlines. Every two hexadecimal characters form //! an encoded byte. This is true even if the two characters representing the //! upper and lower nibbles are separated by whitespace or other characters. //! //! \post The stream read head is left pointing just after the last encoded byte. //! //! \param stream Input stream to read from. //! \param bytes Number of encoded bytes to read. This is the number of \e //! result bytes, not the count of bytes to read from the stream. //! \param[out] buffer Pointer to the buffer where decoded data is written. //! //! \exception std::runtime_error This exception will be thrown if less //! data than required is available from \a stream, or if some other //! error occurs while reading from \a stream. void AESKeyBase::_readFromStream(std::istream & stream, unsigned bytes, uint8_t * buffer) { char temp[2]; char c; char n = 0; while (bytes) { if (stream.get(c).fail()) { throw std::runtime_error("not enough data in stream"); } if (isHexDigit(c)) { temp[n++] = c; if (n == 2) { *buffer++ = hexByteToInt(temp); bytes--; n = 0; } } } } //! Key data is written to \a stream as a sequence of hex encoded octets, each two //! characters long. No spaces or newlines are inserted between the encoded octets //! or at the end of the sequence. //! //! \exception std::runtime_error Thrown if the \a stream reports an error while //! writing the key data. void AESKeyBase::_writeToStream(std::ostream & stream, unsigned bytes, const uint8_t * buffer) { const char hexChars[] = "0123456789ABCDEF"; while (bytes--) { uint8_t thisByte = *buffer++; char byteString[2]; byteString[0] = hexChars[(thisByte & 0xf0) >> 4]; byteString[1] = hexChars[thisByte & 0x0f]; if (stream.write(byteString, 2).bad()) { throw std::runtime_error("error while writing to stream"); } } } @