Samsung_S7/documentation/_build/confluence/svgs/484c133648e1cadce9ac668f651d7a7a3be4730c319f3413d0ce2c72099478f6.svg

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width: 54px; white-space: nowrap; overflow-wrap: normal; text-align: center;"><div xmlns="http://www.w3.org/1999/xhtml" style="display:inline-block;text-align:inherit;text-decoration:inherit;white-space:normal;">Debugger</div></div></foreignObject></g><rect x="0" y="10" width="225" height="110" fill="none" stroke="none" pointer-events="all"/><g transform="translate(4.5,-0.5)"><foreignObject style="overflow:visible;" pointer-events="all" width="215" height="117"><div xmlns="http://www.w3.org/1999/xhtml" style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; vertical-align: top; overflow: hidden; max-height: 120px; max-width: 215px; width: 215px; white-space: normal; overflow-wrap: normal; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display:inline-block;text-align:inherit;text-decoration:inherit;white-space:normal;"><h1>Stage1</h1><div>There is not enough space to load the full debugger in one transaction, so the first stage only configures USB receive and downloads the debugger</div></div></div></foreignObject></g><rect x="310" y="220" width="330" height="110" fill="none" stroke="none" pointer-events="all"/><g transform="translate(314.5,209.5)"><foreignObject style="overflow:visible;" pointer-events="all" width="320" height="102"><div xmlns="http://www.w3.org/1999/xhtml" style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; vertical-align: top; overflow: hidden; max-height: 120px; max-width: 320px; width: 320px; white-space: normal; overflow-wrap: normal; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display:inline-block;text-align:inherit;text-decoration:inherit;white-space:normal;"><h1>Debugger</h1><div>The debugger hijacks the USB return function and lets the ROM download the next stage. Authenticates it and jumps to it. This allows patching BL1 after authentication</div></div></div></foreignObject></g><path d="M 910 170 L 983.63 170" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 988.88 170 L 981.88 173.5 L 983.63 170 L 981.88 166.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/><rect x="800" y="145" width="110" height="50" fill="#f8cecc" stroke="#b85450" pointer-events="all"/><g transform="translate(827.5,163.5)"><foreignObject style="overflow:visible;" pointer-events="all" width="54" height="12"><div xmlns="http://www.w3.org/1999/xhtml" style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; vertical-align: top; width: 55px; white-space: nowrap; overflow-wrap: normal; text-align: center;"><div xmlns="http://www.w3.org/1999/xhtml" style="display:inline-block;text-align:inherit;text-decoration:inherit;white-space:normal;">Jump BL1</div></div></foreignObject></g><rect x="745" y="220" width="330" height="110" fill="none" stroke="none" pointer-events="all"/><g transform="translate(749.5,209.5)"><foreignObject style="overflow:visible;" pointer-events="all" width="320" height="102"><div xmlns="http://www.w3.org/1999/xhtml" style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; vertical-align: top; overflow: hidden; max-height: 120px; max-width: 320px; width: 320px; white-space: normal; overflow-wrap: normal; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display:inline-block;text-align:inherit;text-decoration:inherit;white-space:normal;"><h1>USB Hijack</h1><div>Before jumping in BL1 the ROM function for downloading the next stage is also hijacked, giving us code execution after BL1 is loaded</div></div></div></foreignObject></g><rect x="990" y="145" width="110" height="50" fill="#e1d5e7" stroke="#9673a6" pointer-events="all"/><g transform="translate(1018.5,163.5)"><foreignObject style="overflow:visible;" pointer-events="all" width="53" height="12"><div xmlns="http://www.w3.org/1999/xhtml" style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; vertical-align: top; width: 54px; white-space: nowrap; overflow-wrap: normal; text-align: center;"><div xmlns="http://www.w3.org/1999/xhtml" style="display:inline-block;text-align:inherit;text-decoration:inherit;white-space:normal;">Debugger</div></div></foreignObject></g></g></svg>